A compound of fly + back
Proto-Indo-European *plew- ‘to fly, flow, run’
…
Proto-Germanic *fleugǭ ‘flying insect, fly’
Proto-West Germanic *fleugā ‘fly’
Old English flēge ‘a fly’
Middle English fflye
English fly
Proto-Germanic *baką ‘back’
Proto-West Germanic *bak
Old English bæc
Middle English bak ‘the back’
English back
Today it means
noun The movement of the electron beam back to its initial position between scan lines in a cathode-ray tube display.
Language periods are conventional ranges, not dates for this word.
Etymograph / flyback
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