Where does “flybrush” come from?

flybrush (English) comes from English fly, from Middle English flien, from Old English flēogan, from Old English -ende, from Proto-West Germanic *-andī, from Proto-Germanic -andz, from Proto-Indo-European -ónts, from Hungarian önt — sound, voice.

Ancestry of “flybrush”, step by step

flybrush traces back through two separate lines of ancestry.

via English fly

StepLanguageWordMeaning
1EnglishflyAny insect of the order Diptera; characterized by...
2Middle EnglishflienTo fly; to travel in the air; To move in the sky;...
3Old Englishflēoganto fly
4Old English-endeequivalent of English -ing; suffix for present...
5Proto-West Germanic*-andī
6Proto-Germanic-andz
7Proto-Indo-European-óntsDerives nouns denoting body parts
8Hungarianöntto pour; to cast; accusative singular of ön
9Hungarianönyou
10Hungarianön-self-
11Turkishönfront
12Ottoman Turkishاوكvoice (of human or animal); sound
13Proto-Turkicǖnsound, voice

via English Brush

StepLanguageWordMeaning
1EnglishBrushAn implement consisting of multiple more or less flexible bristles or other filaments attached to a handle, used for any of various purposes including cleaning, painting, and arranging hair
2Middle Englishbrusshe
3Old Frenchbroisse
4Vulgar Latinbrustia
5Icelandicburstibrush
6Proto-Germanicburstizbristle
7Proto-Germanicbʰurstís
8Proto-Indo-Europeanbʰr̥s-tí-s
9Proto-Indo-Europeanbʰers-top, tip, point
Every word from Proto-Turkic ǖnEvery word from Hungarian ön-Every word from Old English -ende