English
flasker
From flask + -er.
A compound of flask + -er
Proto-Indo-European *ploḱ-skō ‘flat’
Proto-Germanic *flaskǭ ‘braid-covered bottle, wicker-enclosed jug’
Frankish *flaskā
Old English flasce ‘bottle, flask’
Middle English flask ‘case, cask, keg’
English flask
Today it means
noun A whisky smuggler.
Language periods are conventional ranges, not dates for this word.
Etymograph / flasker