Where does “peephole” come from?

Peephole is a compound of English peep, a verb meaning to look quickly or furtively, and English hole, a noun meaning an opening or cavity.

peephole (English): A small hole, opening, or piece of glass,...

Definitions

  1. A small hole, opening, or piece of glass,...

Ancestry of “peephole”, step by step

peephole traces back through two separate lines of ancestry.

via English Peep

StepLanguageWordMeaning
1EnglishPeepA soft marshmallow candy, shaped into a baby...
2Englishpeepsplural of peep; Third-person singular simple...
3Englishpeoplea body of human beings considered generally or...
4Middle Englishpuplepeople
5Anglo-Normanpeople
6Old FrenchpopleAlternative form of pueple
7Latinpopulusa people, nation; a community of people; the...
8Old Latinpopulusa people, nation; a community of people; the...
9Old Latinpoplus
10Old Latinpoplos
11Proto-Italicpoplosarmy

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

Words derived from “peephole

Every word from Proto-Italic poplosEvery word from Old Latin poplosEvery word from Old Latin poplus
peephole — Etymology, Origin & Word History | Etymology Explorer