Where does “sesquilingualism” come from?

sesquilingualism (English) comes from English sesquilingual, 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...

sesquilingualism (English): The condition of being sesquilingual; the ability...

Definitions

  1. The condition of being sesquilingual; the ability...

Ancestry of “sesquilingualism”, step by step

sesquilingualism traces back through two separate lines of ancestry.

via English sesquilingual

StepLanguageWordMeaning
1EnglishsesquilingualPertaining to one language, plus a second in a...
2Englishlingualrelated to the tongue; related to language or...
3Latinlinguālislingual
4Latinlinguatongue; a speech; an utterance or expression
5Latin-ularegō + API → rēgula; tegō + API → tēgula;...
6Proto-Indo-European-tlomAlternative form of *-trom
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English ism

StepLanguageWordMeaning
1EnglishismAn ideology, system of thought, or practice that...
2English-ismUsed to form nouns of action or process or result...
3Latin-ismus-ism
4Ancient Greek-ισμόςForms abstract nouns
5Ancient Greek-μόςForms abstract nouns
6Proto-Indo-European-mósCreates action/result nouns from verb stems
Every word from Proto-Indo-European -tḗrEvery word from Latin -ulaEvery word from Latin lingua