Other forms: loins
The loin is the part of the body between the ribs and the hips. Loin of pork, gird your loins, pain in the loin.
In butchery it is the prime cut, tender because the muscle does little work — sirloin is the loin above. Gird your loins means prepare for effort, from tucking up a robe before action. Loins as a euphemism for the reproductive organs is biblical. Note that the Latin lumbus also gives lumbar.
1nounloinThe part of the body between the ribs and the hips.
“The butcher cut thick pork chops from the loin.”
loin is a body part, or a cut of meat.
Old French loigne comes from Latin lumbus, the loin. Lumbar and sirloin come from the same part.
Proto-Indo-European
*lendʰ- (loin)
Proto-Indo-European
*lendʰ- — kidney, waist
Proto-Germanic
*lunduz
Latin
lumbus
Vulgar Latin
*lumbea
Old French
loigne
Middle English
loyne
English, today
loin
From Middle English loyne, from Old French loigne, from Vulgar Latin lumbea, from Latin lumbus, of unknown origin, possibly from osc --xum - londwo- or Proto-Germanic lunduz, both ultimately from Proto-Indo-European lendʰ- (“kidney, waist”). Cognate with Modern English lend (“loin”), Dutch lende, German Lende, Swedish länd (“haunch, loin”), Danish lænd, Proto-Slavic lędvьje (Russian ля́двея). a doublet of lend#Etymology_2*.
Etymology from Wiktionary, CC BY-SA