English
tailpin
From tail + pin.
Proto-Indo-European *deḱ- ‘to tear, fray, shred’
…
Proto-Germanic *taglą ‘hair, fiber’
Proto-West Germanic *tagl
Old English tæġel
Middle English tail
English tail
Proto-Indo-European *bend- ‘protruding object, pointed peg, nail, edge’
Proto-Germanic *pinnaz
Proto-West Germanic *pinn ‘pin, nail’
Old English pinn ‘pin, peg, bolt’
Middle English pinne
English pin
Today it means
noun The centre in the spindle of a turning lathe.
Language periods are conventional ranges, not dates for this word.
Etymograph / tailpin