Where does “thereonto” come from?

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

thereonto (English): Onto that or those

Definitions

  1. Onto that or those

Ancestry of “thereonto”, step by step

thereonto traces back through two separate lines of ancestry.

via English onto

StepLanguageWordMeaning
1EnglishontoUpon; on top of; Aware of; Being an onto function...
2EnglishtoA particle used for marking the following verb as...
3Middle Englishtotoe; to; too
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 there

StepLanguageWordMeaning
1EnglishthereIn a place or location at some distance from the...
2Old Englishþærthere
3Proto-West Germanicþārthere
4Proto-Germanicþarthere, in that place
5Proto-Indo-Europeantar-there
6Proto-Indo-Europeanto-it; that; the, that
7Proto-Indo-Europeanthis; that
Every word from Proto-Indo-European ten-