English
tapper
From tap + -er.
A compound of tap + -er
Proto-Indo-European *deh₂p- ‘to lose’
Proto-Germanic *tappô ‘a plug, tap’
Proto-West Germanic *tappō
Old English tæppa ‘tap, spigot’
Middle English tappe ‘hollow device for controlling the flow of…’
English tap
Today it means
noun One who makes a tapping noise.
Language periods are conventional ranges, not dates for this word.
Etymograph / tapper