Where does “sheep's eye” come from?

sheep's eye (English) comes from English sheep, from Middle English sheep, from Old English sċēap, from Proto-West Germanic skāp, from Proto-Germanic skapą, from Proto-Germanic skapjaną, from Proto-Indo-European skab- — to cut, split, hew, shape; to cut, split, carve,...

sheep's eye (English): A secretive, pining look, or humble doting glance

Definitions

  1. A secretive, pining look, or humble doting glance

Ancestry of “sheep's eye”, step by step

sheep's eye traces back through two separate lines of ancestry.

via English sheep

StepLanguageWordMeaning
1EnglishsheepA woolly ruminant of the genus "Ovis"; A timid,...
2Middle Englishsheepsheep
3Old Englishsċēapsheep
4Proto-West Germanicskāpsheep
5Proto-Germanicskapąshape
6Proto-Germanicskapjanąto make, to create; to shape
7Proto-Indo-Europeanskab-to cut, split, hew, shape; to cut, split, carve,...

via English Eye

StepLanguageWordMeaning
1EnglishEyeA place name
2English-someCharacterized by some specific condition or...
3Middle English-somsome; having a specific quality
4Old Englishsumsome
5Proto-West Germanic*sumsome
6Proto-Germanicsumazsome (one), a certain (one)
7Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European skab-Every word from Proto-Germanic skapjanąEvery word from Proto-Germanic skapą