English
flybook
From fly + book.
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 *bōks ‘letter’
Proto-West Germanic *bōk ‘inscribed billet, letter’
Old English bōc
Middle English bok ‘a document’
English book
Today it means
noun A small case for holding fishing flies.
Language periods are conventional ranges, not dates for this word.
Etymograph / flybook