Where does “jack-strap” come from?

jack-strap (French) comes from English jockstrap, from English Jock, from English Jack, from Middle English jakke, from Anglo-Norman jacke, from Middle French jaque, from Middle French jacques, from French jacques — heel of the foot; heel.

jack-strap (French): jockstrap

Definitions

  1. jockstrap

Ancestry of “jack-strap”, step by step

StepLanguageWordMeaning
1EnglishjockstrapAn athletic supporter worn by men to support the...
2EnglishJockA Scot
3EnglishJackA placeholder or conventional name for any man,...
4Middle EnglishjakkeA padded coat, especially as light armour
5Anglo-Normanjacke
6Middle Frenchjaque
7Middle Frenchjacques
8Frenchjacquesplural of jacque; a stupid person; a jemmy or...
9LatinIacobusJacob; James; Saint James
10Ancient GreekἸάκωβος
11Ancient GreekἸακώβJacob
12HebrewיַעֲקֹבJacob
13Hebrewעָקֵבheel of the foot; heel
Every word from Hebrew עָקֵב