English
guiser
From guise + -er.
A compound of guise + -er
Proto-Indo-European *weyd- ‘to see, view, behold, perceive’
Proto-Germanic *wīsǭ ‘manner, way’
Frankish *wīsa ‘manner, way, fashion’
Old French guisse
Middle English guise
English guise
Today it means
noun A person in disguise, as for a parade or festival.
Language periods are conventional ranges, not dates for this word.
Etymograph / guiser