Where does “bitonalism” come from?

bitonalism (English) comes from English bitonal, from English tonal, from English tone, from Middle English tone, from Latin tonus, from Ancient Greek τόνος, from Proto-Hellenic tónos, from Proto-Indo-European tónos — to stretch, to extend.

bitonalism (English): bitonality

Definitions

  1. bitonality

Ancestry of “bitonalism”, step by step

bitonalism traces back through two separate lines of ancestry.

via English bitonal

StepLanguageWordMeaning
1EnglishbitonalThat has two tonic centres simultaneously; Of or...
2EnglishtonalOf or relating to tones or tonality; Of or...
3EnglishtoneA specific pitch; An interval of a major second;...
4Middle Englishtonethe one
5LatintonusThe stretching or straining of a rope; A strain;...
6Ancient Greekτόνοςrope, cord; chord; tone, note
7Proto-Hellenictónosrope, cord; tension
8Proto-Indo-Europeantónossomething stretched; chord, fiber, string
9Proto-Indo-Europeanten-to stretch, to extend

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 ten-Every word from Proto-Indo-European tónosEvery word from Proto-Hellenic tónos