| aar | Afar |
| abk | Abkhazian |
| ace | Achinese |
| ach | Acoli |
| ada | Adangme |
| afa | Afro-Asiatic (Other) |
| afh | Afrihili |
| afr | Africaans |
| ajm | Aljamia |
| aka | Akan |
| akk | Akkadian |
| alb/sqi | Albanian |
| ale | Aleut |
| alg | Algonquian languages |
| amh | Amharic |
| ang | English, Old (ca. 450-1100) |
| apa | Apache languages |
| ara | Arabic |
| arc | Aramaic |
| arm/hye | Armenian |
| arn | Araucanian |
| arp | Arapaho |
| art | Artificial (Other) |
| arw | Arawak |
| asm | Assamese |
| ath | Athapascan languages |
| ava | Avaric |
| ave | Avestan |
| awa | Awandhi |
| aym | Aymara |
| aze | Azerbaijani |
| bad | Banda |
| bai | Bamileke languages |
| bak | Bashkir |
| bal | Baluchi |
| bam | Bambara |
| ban | Balinese |
| baq/eus | Basque |
| bas | Basa |
| bat | Baltic (Other) |
| bej | Beja |
| bel | Byelorussian |
| bem | Bemba |
| ben | Bengali |
| ber | Berber languages |
| bho | Bhojpuri |
| bih | Bihari |
| bik | Bikol |
| bin | Bini |
| bis | Bislama |
| bla | Siksika |
| bod/tib | Tibetan |
| bra | Braj |
| bre | Breton |
| bug | Buginese |
| bul | Bulgarian |
| bur/mya | Burmese |
| cad | Caddo |
| cai | Central American Indian (Other) |
| car | Carib |
| cat | Catalan |
| cau | Caucasian (Other) |
| ceb | Cebuano |
| cel | Celtic (Other) |
| ces/cze | Czeck |
| cha | Chamorro |
| chb | Chibcha |
| che | Chechen |
| chg | Chagatai |
| chi/zho | Chinese |
| chn | Chinook jargon |
| cho | Choctaw |
| chr | Cherokee |
| chu | Church Slavic |
| chv | Chuvash |
| chy | Cheyenne |
| cop | Coptic |
| cor | Cornish |
| cos | Corsican |
| cpe | Creoles and pidgins,
English-based (Other) |
| cpf | Creoles and pidgins,
French-based (Other) |
| cpp | Creoles and pidgins,
Portuguese-based (Other) |
| cre | Cree |
| crp | Creoles and pidgins (Other) |
| cus | Cushitic (Other) |
| cym/wel | Welsh |
| cze/ces | Czech |
| dak | Dakota |
| dan | Danish |
| del | Delaware |
| deu/ger | German |
| din | Dinka |
| doi | Dogri |
| dra | Dravidian (Other) |
| dua | Duala |
| dum | Dutch, Middle (ca. 1050-1350) |
| dut/nld | Dutch |
| dyu | Dyula |
| dzo | Dzongkha |
| efi | Efik |
| egy | Egyptian (Ancient) |
| eka | Ekajuk |
| ell/gre | Greek, Modern (1453- ) |
| elx | Elamite |
| eng | English |
| enm | English, Middle (1100-1500) |
| epo | Esperanto |
| esk | Eskimo (Other) |
| esl/spa | Spanish |
| est | Estonian |
| eth | Ethiopic |
| eus/baq | Basque |
| ewe | Ewe |
| ewo | Ewondo |
| fan | Fang |
| fao | Faroese |
| fas/per | Persian |
| fat | Fanti |
| fij | Fijian |
| fin | Finnish |
| fiu | Finno-Ugrian (Other) |
| fon | Fon |
| fra/fre | French |
| fre/fra | French |
| frm | French, Middle (ca. 1400-1600) |
| fro | French, Old (ca. 842-1400) |
| fry | Friesian |
| ful | Fulah |
| gaa | Ga |
| gae/gdh | Gaelic (Scots) |
| gai/iri | Irish |
| gay | Gayo |
| gdh/gae | Gaelic (Scots) |
| gem | Germanic (Other) |
| geo/kat | Georgian |
| ger/deu | German |
| gil | Gilbertese |
| glg | Gallegan |
| gmh | German, Mid. High (ca. 1050-1500) |
| goh | German, Old High (ca. 750-1050) |
| gon | Gondi |
| got | Gothic |
| grb | Grebo |
| grc | Greek, Ancient (to 1453) |
| gre/ell | Greek, Modern (1453- ) |
| grn | Guarani |
| guj | Gujarati |
| hai | Haida |
| hau | Hausa |
| haw | Hawaiian |
| heb | Hebrew |
| her | Herero |
| hil | Hiligaynon |
| him | Himachali |
| hin | Hindi |
| hmo | Hiri Motu |
| hun | Hungarian |
| hup | Hupa |
| hye/arm | Armenian |
| iba | Iban |
| ibo | Igbo |
| ice/isl | Icelandic |
| ijo | Ijo |
| iku | Inuktitut |
| ile | Interlingue |
| ilo | Iloko |
| ina | Interlingua (International Auxilary
Language Association) |
| inc | Indic (Other) |
| ind | Indonesian |
| ine | Indo-European (Other) |
| ipk | Inupiak |
| ira | Iranian (Other) |
| iri/gai | Irish |
| iro | Iroquoian languages |
| isl/ice | Icelandic |
| ita | Italian |
| jav/jaw | Javanese |
| jaw/jav | Javanese |
| jpn | Japanese |
| jpr | Judeo-Persian |
| jrb | Judeo-Arabic |
| kaa | Kara-Kalpak |
| kab | Kabyle |
| kac | Kachin |
| kal | Greenlandic |
| kam | Kamba |
| kan | Kannada |
| kar | Karen |
| kas | Kashmiri |
| kat/geo | Georgian |
| kau | Kanuri |
| kaw | Kawi |
| kaz | Kazakh |
| kha | Khasi |
| khi | Khoisan (Other) |
| khm | Khmer |
| kho | Khotanese |
| kik | Kikuyu |
| kin | Kinyarwanda |
| kir | Kirghiz |
| kok | Konkani |
| kon | Kongo |
| kor | Korean |
| kpe | Kpelle |
|
| kro | Kru |
| kru | Kurukh |
| kua | Kuanyama |
| kur | Kurdish |
| kus | Kusaie |
| kut | Kutenai |
| lad | Ladino |
| lah | Lahnda |
| lam | Lamba |
| lao | Lao |
| lap | Lapp languages |
| lat | Latin |
| lav | Latvian |
| lin | Lingala |
| lit | Lithuanian |
| lol | Mongo |
| loz | Lozi |
| lub | Luba-Katanga |
| lug | Ganda |
| lui | Luiseno |
| lun | Lunda |
| luo | Luo (Kenya and Tanzania) |
| mac/mke | Macedonian |
| mad | Madurese |
| mag | Magahi |
| mah | Marshall |
| mai | Maithili |
| mak | Makasar |
| mal | Malayalam |
| man | Mandingo |
| mao/mri | Maori |
| map | Austronesian (Other) |
| mar | Marathi |
| mas | Masai |
| max | Manx |
| may/msa | Malay |
| men | Mende |
| mic | Micmac |
| min | Minangkabau |
| mis | Miscellaneous (Other) |
| mke/mac | Macedonian |
| mkh | Mon-Khmer (Other) |
| mlg | Malagasy |
| mlt | Maltese |
| mni | Manipuri |
| mno | Manobo languages |
| moh | Mohawk |
| mol | Moldavian |
| mon | Mongolian |
| mos | Mossi |
| mri/mao | Maori |
| msa/may | Malay |
| mul | Multiple languages |
| mun | Munda (Other) |
| mus | Creek |
| mwr | Marwari |
| mya/bur | Burmese |
| myn | Mayan languages |
| nah | Aztec |
| nai | North American Indian (Other) |
| nau | Nauru |
| nav | Navajo |
| nde | Ndebele (Zimbabwe) |
| nld/dut | Dutch |
| ndo | Ndonga |
| nep | Nepali |
| new | Newari |
| nic | Niger-Kordofanian (Other) |
| niu | Niuean |
| non | Old Norse |
| nor | Norwegian |
| nso | Northern Sohto |
| nub | Nubian languages |
| nya | Nyanja |
| nym | Nyamwezi |
| nyn | Nyankole |
| nyo | Nyoro |
| nzi | Nzima |
| oci | Langue d'oc (post 1500) |
| oji | Ojibwa |
| ori | Oriya |
| orm | Oromo |
| osa | Osage |
| oss | Ossetic |
| ota | Turkish, Ottoman |
| oto | Otomian languages |
| paa | Papuan-Australian (Other) |
| pag | Pangasinan |
| pal | Pahlavi |
| pam | Pampanga |
| pan | Panjabi |
| pap | Papiamento |
| pau | Palauan |
| peo | Old Persian (ca. 600-400 B.C.) |
| per/fas | Persian |
| pli | Pali |
| pol | Polish |
| pon | Ponape |
| por | Portuguese |
| pra | Prakrit languages |
| pro | Provencal, Old (to 1500) |
| pus | Pushto |
| que | Quechua |
| raj | Rajasthani |
| rar | Rarotongan |
| roa | Romance (Other) |
| roh | Raeto-Romance |
| rom | Romany |
| ron/rum | Romanian |
| rum/ron | Romanian |
| run | Rundi |
| rus | Russian |
| sad | Sandawe |
| sag | Sango |
| sai | South American Indian (Other) |
| sal | Salishan languages |
| sam | Samaritan Aramaic |
| san | Sanskrit |
| sco | Scots |
| scr | Serbo-Croatian |
| sel | Selkup |
| sem | Semitic (Other) |
| shn | Shan |
| sid | Sidamo |
| sin | Sinhalese |
| sio | Siouan languages |
| sit | Sino-Tibetan (Other) |
| sla | Slavic (Other) |
| slk/slo | Slovak |
| slo/slk | Slovak |
| slv | Slovenian |
| smo | Samoan |
| sna | Shona |
| snd | Sindhi |
| sog | Sogdian |
| som | Somali |
| son | Songhai |
| sot | Sotho |
| spa/esl | Spanish |
| sqi/alb | Albanian |
| srr | Serer |
| ssa | Nilo-Saharan (Other) |
| ssw | Swazi |
| suk | Sukuma |
| sun | Sundanese |
| sus | Susu |
| sux | Sumerian |
| sve/swe | Swedish |
| swa | Swahili |
| swe/sve | Swedish |
| syr | Syriac |
| tah | Tahitian |
| tam | Tamil |
| tat | Tatar |
| tel | Telugu |
| tem | Timne |
| ter | Tereno |
| tgk | Tajik |
| tgl | Tagalog |
| tha | Thai |
| tib/bod | Tibetan |
| tig | Tigre |
| tir | Tigrinya |
| tiv | Tivi |
| tli | Tlingit |
| tog | Tonga (Nyasa) |
| ton | Tonga (Tonga Islands) |
| tru | Truk |
| tsi | Tsimshian |
| tsn | Tswana |
| tso | Tsonga |
| tuk | Turkmen |
| tum | Tumbuka |
| tur | Turkish |
| tut | Altaic (Other) |
| twi | Twi |
| uga | Ugaritic |
| uig | Uighur |
| ukr | Ukrainian |
| umb | Umbundu |
| und | Undetermined |
| urd | Urdu |
| uzb | Uzbek |
| vai | Vai |
| ven | Venda |
| vie | Vietnamese |
| vol | Volapuk |
| vot | Votic |
| wak | Wakashan languages |
| wal | Walamo |
| war | Waray |
| was | Washo |
| wel/cym | Welsh |
| wen | Sorbian languages |
| wol | Wolof |
| xho | Xhosa |
| yao | Yao |
| yap | Yap |
| yid | Yiddish |
| yor | Yoruba |
| zap | Zapotec |
| zen | Zenaga |
| zha | Zhuang |
| zho/chi | Chinese |
| zul | Zulu |
| zun | Zuni |
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