English
sweepback
From sweep + back.
Proto-Germanic *swaipaną ‘to sweep’
Proto-Germanic *swaipijaną ‘to sweep’
Proto-West Germanic *swaipijan ‘to sweep’
Anglian Old English *swēpan
Middle English swepen ‘to sweep (something)’
English sweep
Proto-Germanic *baką ‘back’
Proto-West Germanic *bak
Old English bæc
Middle English bak ‘the back’
English back
Today it means
noun The rearward angle of the leading edge of a wing, or airfoil.
Sources
Sources: Wiktionary, “sweepback”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / sweepback