peephole
Meaning
a small hole in a door or wall through which one can look, typically from the inside, to see who is outside.
any small opening designed for looking through.
Structure
Usage
she looked through the peephole before opening the apartment door.
the old castle door had a small, rusty peephole for guards to observe visitors.
he covered the peephole with a piece of tape for privacy.
Etymology
The word 'peephole' is a transparent English compound, formed from two native English elements. The first element, 'peep', is an onomatopoeic verb from the late Middle English period, imitative of the chirp of a small bird, which semantically shifted to describe the quick, furtive, or secretive glance such a sound might accompany. The second element, 'hole', derives from the Old English hol, meaning a hollow place or opening, a concept with Proto-Germanic and ultimately Proto-Indo-European roots relating to concealment and covered spaces. When combined, the literal "hole for peeping" perfectly captures the object's function, evolving from a simple descriptive term to the standard name for a security and viewing fixture in doors and walls.
Analysis
peep (origin: middle english pepen, likely imitative; functional role: verb root meaning to look quickly or furtively). hole (origin: old english hol; functional role: noun meaning an opening or hollow place).