(linguistics) "role language": unique language usage serving as a marker of social identity in fictional speech

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds

(computing) computational linguistics

Min Nan

Breton language

the Erzya language

the Faroese language

the Cornish language

Modern Greek - the Greek language as spoken since the 16th century

Ancient Greek language