English
holer
From hole + -er.
A compound of hole + -er
Proto-Germanic *hulaz ‘hollow’
Proto-Germanic *hulą ‘hollow space’
Proto-West Germanic *hol ‘hollow space, cavity’
Old English hol ‘hole, hollow place’
Middle English hole
English hole
Today it means
noun That which holes, perforates etc.
Language periods are conventional ranges, not dates for this word.
Etymograph / holer