Where does “loin eye” come from?

loin eye (English) comes from English loin, from Middle English loyne, from Old French loigne, from Vulgar Latin *lumbea, from Latin lumbus, from Proto-Italic lonðwos, from Proto-Indo-European lendʰwos, from Proto-Indo-European lendʰ- — land, heath; loins.

Ancestry of “loin eye”, step by step

loin eye traces back through two separate lines of ancestry.

via English loin

StepLanguageWordMeaning
1EnglishloinThe part of the body at each side of the...
2Middle EnglishloyneThe loins or their muscles
3Old Frenchloigne
4Vulgar Latin*lumbea
5Latinlumbusloin; lumbar; genitals
6Proto-Italiclonðwos
7Proto-Indo-Europeanlendʰwos
8Proto-Indo-Europeanlendʰ-land, heath; loins

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 lendʰ-Every word from Proto-Indo-European lendʰwosEvery word from Proto-Italic lonðwos
loin eye — Etymology, Origin & Word History | Etymology Explorer