alt - Southern Altai
arc - Official Aramaic (700-300 BCE)
aar - Afar
abk - Abkhazian
ace - Achinese
ach - Acoli
ada - Adangme
ady - Adyghe
afa - Afro-Asiatic languages
afh - Afrihili
afr - Afrikaans
ain - Ainu (Japan)
aka - Akan
akk - Akkadian
alb / sqi - Albanian
ale - Aleut
alg - Algonquian languages
amh - Amharic
ang - Old English (ca. 450-1100)
anp - Angika
apa - Apache languages
ara - Arabic
arg - Aragonese
arm / hye - Armenian
arn - Mapudungun
arp - Arapaho
art - Artificial languages
arw - Arawak
asm - Assamese
ast - Asturian
ath - Athapascan languages
aus - Australian languages
ava - Avaric
ave - Avestan
awa - Awadhi
aym - Aymara
aze - Azerbaijani
map - Austronesian languages
tut - Altaic languages
cai - Central American Indian languages
cpe - Creoles and pidgins, English based
cpf - Creoles and pidgins, French-based
cpp - Creoles and pidgins, Portuguese-based
crp - Creoles and pidgins
gba - Gbaya (Central African Republic)
grc - Greek, Ancient
ina - Interlingua (International Auxiliary Language Association)
nai - North American Indian languages
sai - South American Indian (Other)
sam - Samaritan Aramaic