Where does “armhole” come from?

Armhole comes from Middle English, combining arm with hole from Old English hol, itself from Old English helan meaning to conceal.

armhole (English): A human armpit; Similar structures in other...

Definitions

  1. A human armpit; Similar structures in other...

Ancestry of “armhole”, step by step

armhole traces back through two separate lines of ancestry.

via English hole

StepLanguageWordMeaning
1EnglishholeA hollow place or cavity; an excavation; a pit;...
2Middle Englishholehealthy; safe; whole, complete, full
3Old Englishhola hole, a hollow; calumny; slander
4Proto-West Germanicholhollow; hole
5Proto-Germanichuląa hollow; depression; hole
6Proto-Germanichulazhollow
7Proto-Indo-Europeanḱel-to cover; to incline

via English Arm

StepLanguageWordMeaning
1EnglishArmAbbreviation of Armenian
2Middle Englisharmarm; poor; miserable, wretched
3Old Englishearmarm; poor, miserable
4Proto-West Germanicarmarm; poor, miserable; pitiful, pitiable
5Proto-Germanicarmazarm; poor, miserable; pitiful, pitiable
6Proto-Indo-Europeanh₂ermos
7Proto-Indo-Europeanh₂er-to fit, to fix, to put together
Every word from Proto-Indo-European ḱel-