1854, from German flügelhorn, from flügel "wing," (from Middle High German vlügel, from Proto-Germanic *flugilaz, suffixed form of PIE root *pleu- "to flow") + horn "horn" (from PIE root *ker- (1) "horn; head").
flue
fluency
fluent
fluff
fluffy
flugelhorn
fluid
fluidity
fluke
fluky
flume
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