Where does “tetralingual” come from?

tetralingual (English) comes from English lingual, from Latin linguālis, from Latin lingua, from Latin -ula, from Proto-Indo-European -tlom, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

tetralingual (English): Able to read or speak four languages; Expressed...

Definitions

  1. Able to read or speak four languages; Expressed...

Ancestry of “tetralingual”, step by step

tetralingual traces back through two separate lines of ancestry.

via English lingual

StepLanguageWordMeaning
1Englishlingualrelated to the tongue; related to language or...
2Latinlinguālislingual
3Latinlinguatongue; a speech; an utterance or expression
4Latin-ularegō + API → rēgula; tegō + API → tēgula;...
5Proto-Indo-European-tlomAlternative form of *-trom
6Proto-Indo-European-tromForms nouns denoting a tool or instrument
7Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English tetra

StepLanguageWordMeaning
1EnglishtetraAny of numerous species of small South American...
2TranslingualTetragonopterus
3Ancient Greekπτερόνfeather; wing; Any winged creature
4Proto-Indo-Europeanpéth₂r̥wing; feather
5Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-Indo-European -tḗrEvery word from Latin -ulaEvery word from Latin lingua
tetralingual — Etymology, Origin & Word History | Etymology Explorer