English
aftershaft
From after- + shaft.
Proto-Indo-European *skeh₂p- ‘club, rod, shaft, staff’
Proto-Germanic *skaftaz
Proto-West Germanic *skaft
Old English sċeaft ‘shaft, pole’
Middle English chafte
English shaft
Today it means
noun An accessory plume arising from the posterior of the contour feathers of many birds.
Language periods are conventional ranges, not dates for this word.
Etymograph / aftershaft