This morpheme tends to mean "one who". Some of the most representative words that include it are: librarian, historian, magician. It's typically applied to nouns.
See the full list below:
- guardian
- historian
- politician
- librarian
- musician
- gillian
- physician
- pedestrian
- technician
- lesbian
- median
- comedian
- magician
- civilian
- electrician
- mathematician
- theologian
- custodian
- patrician
- vegetarian
- antiquarian
- meridian
- paediatrician
- titian
- hessian
- alsatian
- optician
- clinician
- parliamentarian
- statistician
- barbarian
- obsidian
- obstetrician
- carnelian
- disciplinarian
- academician
- pomeranian
- tactician
- dietician
- beautician
- egalitarian
- dietitian
- theoretician
- libertarian
- amphibian
- gentian
- ruffian
- dalmatian
- thespian
- grammarian
- veterinarian
- tragedian
- psychogeriatrician
- logician
- bohemian
- fustian
- octogenarian
- strontian
- radian
- unitarian
- phonetician
- rhetorician
- mortician
- darwinian
- diagnostician
- tian
- metaphysician
- plebeian
- crocodilian
- xian
- simian
- geriatrician
- durian
- utopian
- seminarian
- chelonian
- prehistorian
- quotidian
- valerian
- centenarian
- lilliputian
- communitarian
- pian
- septuagenarian
- planarian
- contrarian
- tertian
- aeolian
- steradian
- geometrician
- millenarian
- bavarian
- psychometrician
- nonagenarian
- corinthian
- dialectician
- vaudevillian
- bacchanalian
- badian
- arithmetician
- trinitarian
- semiotician
- authoritarian
- eutherian
- majoritarian
- antediluvian
- ornithischian
- valetudinarian
- econometrician
- episcopalian
- cnidarian
- celsian
- precisian
- semi-vegetarian
- ceratopsian
- hereditarian
- linguistician
- sexagenarian
- geophysician
- caecilian
- uniformitarian
- epinician
- radiolarian
- corpuscularian
- latitudinarian
- inegalitarian
- lacto-ovo-vegetarian
- apian
- antinomian
- antimeridian
- pyrotechnician
- sesquipedalian
- psychohistorian
- saurian
- saurischian
- etesian
- Acacian
- Zwinglian
- therizinosaurian
- mesoeucrocodylian
- sauropterygian
- pescevegetarian
- Armenian
- concubinarian
- Atrebatian
- necessarian
- sociophonetician
- spiralian
- Kolarian
- Guamanian
- Hindian
- bariatrician
- Necessarian
- USAian
- Black Russian
- Sydnesian
- Hebrician
- Chechnian
- parochian
- Azanian
- Sidonian
- grumbletonian
- rectitudinarian
- logitian
- Swindonian
- hobohemian
- sarcopterygian
- session musician
- demi-vegetarian
- maidmarian
- Malawian
- Caspian
- pescovegetarian
- militarian
- Ultonian
- public historian
- Red Indian
- Xian
- Montegonian
- binitarian
- urodelian
- veterinary technician
- Canarian
- Cartesian
- Paleo-Indian
- allodaposuchian
- Alogian
- cislesbian
- ethnohistorian
- Hesperian
- Ligurian
- xian
- Hebridian
- Phaeacian
- sertularian
- Avarian
- Iroquoian
- Barcelonian
- South Ossetian
- bezonian
- Haligonian
- Tasmanian
- Cincinnatian
- Scincoidian
- Aurignacian
- Beotian
- Bethanian
- macronarian
- Chalcedonian
- metaphorician
- Mordovian
- multidisciplinarian
- Karelian
- North American Indian
- Lilliputian
- Earthian
- Cataian
- rotatorian
- salutatorian
- Hurrian
- antitotalitarian
- planetarian
- prosimian
- Usanian
- Vaticanian
- vocabularian
- boyzilian
- Wagnerian
- Hayekian
- hippocrepian
- Eusebian
- identitarian
- tubularian
- covaledictorian
- nomadian
- Lithuanian
- reticularian
- Sasanian
- Estonian
- Mordvian
- snowflake obsidian
- Abelonian
- Lybian
- hypochristian
- metatherian
- conquian
- musitian
- Kajkavian
- proletarian
- vicarian
- Gutian
- hypoChristian
- Esculapian
- euselachian
- Bavarian
- Bedfordian
- Lemnian
- nutarian
- academian
- Celt-Iberian
- Persian
- infralapsarian
- solifidian
- Varsovian
- Melburnian
- Tyrian
- Ponapeian
- necessitarian
- futilitarian
- Herodian
- Porcellian
- nihilarian
- Proto-Indo-Iranian
- Zoroastrian
- Parisian
- Ancient Macedonian
- Mordvinian
- leptocardian
- Eastern Armenian
- Celtiberian
- Palestinian
- metrician
- antilibertarian
- extropian
- Laotian
- Numidian
- YouTubian
- Albanian
- Hispasian
- Sabbatarian
- Samian
- Christadelphian
- minoritarian
- astrometrician
- Montenegrian
- Kashubian
- bimedian
- Deaflympian
- West Indian
- Extropian
- Aromanian
- Atlantian
- Basilidian
- Nepalian
- primordian
- cynodontian
- Danube Swabian
- Grassmannian
- White Russian
- Cappadocian
- Praetorian
- Bolgarian
- Maeonian
- Albanian
- Aonian
- identity politician
- Atlantian
- sitcomedian
- Danubian
- gecarcinian
- nonhistorian
- Abissinian
- Changxingian
- enaliosaurian
- Mercurian
- Chorezmian
- praetorian
- Proto-Iranian
- Breslavian
- epicedian
- traducian
- physicomathematician
- Gaian
- boreoeutherian
- Northumbrian
- Californian
- Machiavellian
- Madagascarian
- Albanian
- homoiousian
- prætorian
- Kimmerian
- Hahnemannian
- Carthaginian
- Muscovian
- Unitarian
- Lycaonian
- Prætorian
- Varangian
- Venerian
- gynotician
- triphibian
- New Keynesian
- Bohemian
- Hessian
- Sabbatharian
- hydraulician
- sebecosuchian
- Trentonian
- geckotian
- Carolingian
- Hurro-Urartian
- Circassian
- Fomorian
- Psarian
- nonpedestrian
- Bucknellian
- Syrian
- magitian
- Æthiopian
- Carthusian
- hemerobian
- charitarian
- Salvadorian
- Czechoslovakian
- Khwarazmian
- Warringtonian
- Academician
- Oregonian
- Maesulian
- Maglemosian
- amoebian
- homousian
- Sanduskian
- Scripturian
- Aristotelian
- prioritarian
- nonmusician
- gradian
- Palestinkian
- Hissian
- Salesian
- archmagician
- coecilian
- Shimerian
- Van Diemonian
- leguleian
- Calabrian
- Carolinian
- Paralympian
- Messalian
- Trinbagonian
- Indo-Asian
- babian
- nonthespian
- Bristolian
- Accadian
- Caymanian
- Tirolian
- scyllarian
- Illinoisian
- Solarian
- proboscidian
- sphenacodontian
- Sabbatian
- anti-Hegelian
- Tyrolian
- Corinthian
- Flandrian
- Khwarezmian
- Amazonian
- Messapian
- antiparkinsonian
- Exonian
- Cubanadian
- Belizian
- Galwegian
- La Trobian
- Haitian
- cardician
- Chesepian
- pollutician
- Dagestanian
- dasyuromorphian
- Stahlian
- Randian
- Old Marlburian
- Zenonian
- Asgardian
- fermentarian
- prosodian
- Venetian
- Virginian
- gondwanatherian
- Bradfieldian
- Harrovian
- Evertonian
- Khwarizmian
- Noachian
- gaysian
- nonproletarian
- Gobannian
- Güntherian
- Hanakian
- Lycian
- Michiganensian
- ethnomusician
- Moesian
- Sicanian
- Narnian
- North Carolinian
- suburbian
- xenophobian
- Malaysian
- Christian
- art historian
- Jawaiian
- pterosaurian
- Borstalian
- struthonian
- Nova Scotian
- Cardiffian
- cliometrician
- astronomian
- Bacchanalian
- Stratfordian
- Brusselian
- Achaemenian
- Eastern Herzegovinian
- Martian
- ceratosaurian
- American Indian
- metaphysitian
- pseudomedian
- Blackpudlian
- Stocktonian
- Vilmanian
- grammatician
- Aequian
- Alabamian
- Scandahoovian
- antidisestablishmentarian
- perfectibilian
- pretorian
- South Walian
- Laconian
- vilmanian
- breatharian
- Achæmenian
- Cameronian
- Afrabian
- Rothbardian
- Saskatchewanian
- Scadian
- Cliftonian
- fastilarian
- Cracovian
- tauromachian
- Salopian
- anthropologian
- tricenarian
- Pretorian
- Keswickian
- Labradorian
- Bolivarian
- hadrosaurian
- Orcadian
- Æquian
- Pastafarian
- epistellar Jovian
- Tocharian
- antisabbatarian
- eusuchian
- Baconian
- cracovian
- Neanderthalian
- Vilnian
- Dionysian
- Loegrian
- Drusian
- microradian
- Indo-Iranian
- sirenian
- myxosporidian
- Sogdian
- Proto-Polynesian
- Aberdonian
- Malaŵian
- pædiatrician
- Ecuadorian
- celesbian
- Paphian
- chapstick lesbian
- Saskatonian
- Ukrainian
- Presbyterian
- solitarian
- bestiarian
- Uranian
- quinquagenarian
- sublaplacian
- Buffalonian
- supercentenarian
- Alsatian
- chondropterygian
- antitrinitarian
- Pestalozzian
- Aquarian
- archosaurian
- sublapsarian
- Roumanian
- Sardinian
- Icarian
- Philippian
- Neonomian
- doctrinarian
- Cameroonian
- Capetian
- Wronskian
- Cheskian
- salpian
- Mician
- Millhillian
- picoradian
- Montessorian
- Augustinian
- Shirburnian
- Cracowian
- neobratrachian
- Kantian
- Bermudian
- professional politician
- Gaytonian
- Bolivian
- Aberginian
- Djiboutian
- supralapsarian
- Malthusian
- Messenian
- Cistercian
- coccidian
- Trinidadian
- Falerian
- monotrysian
- Tunisian
- Afrasian
- Ozarkian
- emergency medical technician
- somphospondylian
- Vukovian
- Capetonian
- Hawai'ian
- Salian
- Horezmian
- Erasmian
- Trinidadian and Tobagonian
- Ingrian
- Warsovian
- Reykjavikian
- Caucasian
- emergency physician
- Mimantian
- Falernian
- Sharonian
- Floridian
- Blundellian
- Nootkian
- Leodensian
- Lewesian
- calypsonian
- machine politician
- Hawaiian
- Oxfordian
- Paracelsian
- Elysian
- Holmesian
- saffian
- periscian
- sharonian
- Leodiensian
- Calamian
- paracelsian
- Arminian
- Falestinian
- Ishmaelian
- postsectarian
- fruitarian
- Maharashtrian
- matrician
- Meletian
- Samnian
- Erastian
- New Orleanian
- biospherian
- street musician
- Achaian
- Rosicrucian
- champian
- coguardian
- Trinitarian
- nonpolitician
- virgularian
- Novatian
- West Virginian
- Lucanian
- cercarian
- matrician
- Megarian
- Ilian
- Serbian
- Servian
- practician
- Kastorian
- Daphnian
- Lestrygonian
- hexagenerian
- Antwerpian
- Scythian
- Indoasian
- Silesian
- Galatian
- Old Prussian
- Algerian
- militician
- Fenian
- Praguian
- nonagrarian
- Carlovingian
- Schwarzian
- Midgardian
- Euronesian
- arithmetitian
- North Indian
- Chagossian
- Thermidorian
- Sabellian
- Sassanian
- Perthian
- Sirian
- Cretian
- crossopterygian
- Bielorussian
- Springfieldian
- brutalitarian
- Tamartian
- Aetolian
- Malabarian
- Sabellian
- Aotearoaian
- neoceratopsian
- Sorbian
- Russian
- Millian
- Tyrrhenian
- contractarian
- Multician
- political lesbian
- Israelian
- Spenserian
- Stopfordian
- actinian
- Massachusettsian
- appendicularian
- Forlivian
- nonagrian
- Leucadian
- Llandoverian
- Habsburgian
- rhynchocephalian
- Rightpondian
- Thibetian
- Salvatorian
- Morelian
- solitudinarian
- Boeotian
- Lesvonian
- Abu Dhabian
- Ichkerian
- semantician
- Ionian
- Nassuvian
- Baxterian
- biostatistician
- Haytian
- Riffian
- microhistorian
- Cluniacensian
- Tyrsenian
- kouxian
- vegaquarian
- Waterlandian
- macropodian
- Canuckistanian
- Dworkinian
- Parthian
- Samogitian
- Europasian
- euthanasian
- Columbian
- attitudinarian
- Azerbaijanian
- Cromwellian
- Southamptonian
- propertarian
- sphenosuchian
- Gambian
- Valdensian
- demospongian
- Bœotian
- glibertarian
- Norvicensian
- Hawai`ian
- Catalonian
- Zonian
- ultracrepidarian
- Sicilian
- Silhillian
- Ivoirian
- Slovakian
- Fox Newsian
- Benghazian
- gorgonian
- Abkhasian
- miscellanarian
- monodelphian
- twistorian
- Proto-Yeniseian
- nonbilaterian
- Capricornian
- Hawaiʻian
- Palæstinian
- epistolarian
- metapolitician
- Micronesian
- transbian
- asklepian
- Aukštaitian
- Coventrian
- Sofian
- Tanzanian
- Chian
- Trifluvian
- Ivorian
- grobian
- Hamiltonian
- Ricardian
- Antiscian
- Mission Indian
- inferobranchian
- Dalecarlian
- Gaussian
- Gibraltarian
- Laventillian
- legalitarian
- octagenarian
- aerarian
- Mobilian
- Pondicherrian
- Mysian
- potamian
- Frisian
- Southcottian
- Nikonian
- brobdingnagian
- Lotharingian
- Hamiltonian
- Camunian
- Magnesian
- ærarian
- riparian
- meatarian
- mesomyodian
- Ausonian
- prian
- Cyprian
- Valdivian
- vicenarian
- Brabantian
- nothingarian
- Celestinian
- Charlestonian
- meatatarian
- even-christian
- Languedocian
- gorgonopsian
- onomastician
- Syrophenician
- Maldivian
- Taswegian
- pharmacian
- Karmathian
- Rascian
- Grimbarian
- Downtonian
- Syrophoenician
- Eudoxian
- sexagenerian
- plesiosaurian
- Port Harcourtian
- Bannian
- Karmatian
- British Columbian
- Buffian
- Abkhazian
- Cancerian
- medician
- cigar store Indian
- Iranian
- bannian
- Daunian
- protorosaurian
- Leicestrian
- Abderian
- Syrophœnician
- Monarchian
- Sotonian
- Fuegian
- Southeast Asian
- noncivilian
- Venusian
- nullifidian
- lissamphibian
- materiarian
- Samosatenian
- Philistinian
- Bahamian
- Leonian
- Graecian
- documentarian
- syrphian
- Anatolian
- Corkonian
- Nevadian
- Noetian
- bioinformatician
- Terreneuvian
- medusian
- Slovenian
- Græcian
- Swedenborgian
- Terreneuvian
- Samothracian
- Scandinavian
- Etonian
- aularian
- Barbadian
- Latakian
- viridian
- Lothringian
- Lydian
- sabermetrician
- Antarctician
- Phaiakian
- turiasaurian
- pseudosuchian
- Lemurian
- graphician
- Whedonian
- Haileyburian
- Schwenkfeldian
- Senegambian
- Udmurtian
- Sierra Leonian
- geopolitician
- Carmathian
- Bangkokian
- nonequalitarian
- Volynian
- Norwegian
- Dumnonian
- Carmatian
- amphisbaenian
- Anglian
- mesonychian
- Tsakonian
- valedictorian
- Gergovian
- vulgarian
- Pamphylian
- Saturnian
- United Statesian
- Kamiltonian
- stereometrician
- sublibrarian
- lucernarian
- Robertian
- celibatarian
- eutheriodontian
- Transnistrian
- strict vegetarian
- Walachian
- gyptian
- haemosporidian
- Swabian
- Chilian
- saturnian
- United Statian
- ganoidian
- acoustician
- rosarian
- amphiscian
- salientian
- Peloponnesian
- aphidian
- Umbrian
- nonequestrian
- velocipedestrian
- Lasallian
- Xaverian
- manzilian
- alcyonarian
- Americanian
- Sabian
- chilian
- Sangamonian
- Antarian
- Arizonian
- semibarbarian
- semitertian
- velocipedian
- gold star lesbian
- dictionarian
- Gramscian
- Oceanian
- super-centenarian
- onomatopoeian
- Hegelian
- Noranian
- nutritarian
- floscularian
- postindian
- noranian
- Liburnian
- Manzonian
- alethinophidian
- Central Asian
- alumian
- rubian
- anthropophaginian
- Comorian
- pugeranian
- Wallachian
- Oliverian
- Hattian
- Marlburian
- parkinsonian
- Santerían
- Slovincian
- Gaditanian
- Gran Colombian
Note: these words have been obtained from Wiktionary and have been classified and improved through automated computer linguistics processes.