Where does “onshore” come from?

Onshore derives from English on and English shore, with shore tracing back through Japanese 音, Proto-Indo-European wen-, and Proto-Indo-European óynos and aukw-, ultimately referring to sound or water-related concepts.

onshore (English): moving from the sea towards the land: "an onshore...

Definitions

  1. moving from the sea towards the land: "an onshore...

Ancestry of “onshore”, step by step

onshore traces back through two separate lines of ancestry.

via English on

StepLanguageWordMeaning
1EnglishonIn the state of being active, functioning or...
2Middle Englishonon, in; on; Alternative form of oon
3Old Englishonon, in, at, among; from
4Proto-West Germanicanaon
5Proto-Germanic*an—
6Proto-Germanicanaon, at; on, onto; ana
7Proto-Indo-Europeanh₂en-on, onto

via English shore

StepLanguageWordMeaning
1EnglishshoreLand adjoining a non-flowing body of water, such...
2Middle Englishshorea prop; support
3Middle Dutchschoreshore; crack, rip, tear
4Proto-Germanicskuriz—
5Proto-Germanicskeranąto shear
6Proto-Indo-Europeansḱer-to caw, crow
Every word from Proto-Indo-European h₂en- →
onshore — Etymology, Origin & Word History | Etymology Explorer