Where does “bilinguality” come from?

bilinguality (English) comes from English bilingual, from Latin bilinguis, 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...

bilinguality (English): bilingualism

Definitions

  1. bilingualism

Ancestry of “bilinguality”, step by step

bilinguality traces back through two separate lines of ancestry.

via English bilingual

StepLanguageWordMeaning
1EnglishbilingualHaving the ability to speak two languages; Spoken...
2LatinbilinguisDouble-tongued, two-tongued; speaking two...
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 ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs
Every word from Proto-Indo-European -tḗrEvery word from Latin -ulaEvery word from Latin lingua