Where does “first language” come from?

first language (English) comes from English language, from Middle English langage, from Old French language, from Vulgar Latin linguaticum, from Latin lingua, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

first language (English): The first language one is taught to speak; one's native language

Definitions

  1. The first language one is taught to speak; one's native language

Ancestry of “first language”, step by step

first language traces back through two separate lines of ancestry.

via English language

StepLanguageWordMeaning
1EnglishlanguageA body of words, and set of methods of combining...
2Middle Englishlangagelanguage, tongue, speech; dialect, idiom, local...
3Old Frenchlanguagelanguage (style of communicating)
4Vulgar Latinlinguaticumlanguage
5Latinlinguatongue; a speech; an utterance or expression
6Latin-ularegō + API → rēgula; tegō + API → tēgula;...
7Proto-Indo-European-tlomAlternative form of *-trom
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English First

StepLanguageWordMeaning
1EnglishFirstPreceding all others of a series or kind; the ordinal of one; earliest
2Middle Englishfirstfirst
3Old EnglishfyrstAlternative form of fierst; Alternative form of...
4Proto-Germanicfrestaz
5Proto-Indo-Europeanpres-to press
6Proto-Indo-Europeanper-before, in front; first; to go through
7Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European -tḗr
first language — Etymology, Origin & Word History | Etymology Explorer