English

flyspeck

From fly + speck.

A compound of fly + speck

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

Old English specca ‘small spot, stain’

Middle English spekke ‘a splotch or stain’

English speck

Today it means

noun Housefly excrement, visible as a minuscule black dot.

Language periods are conventional ranges, not dates for this word.

Etymograph / flyspeck