the word 'waggish' emerged in the late 16th century, formed from the noun 'wag', a term for a mischievous or humorous person, which was itself in use from the mid-16th century. the origin of 'wag' is likely connected to the verb 'wag', meaning to move side to side, perhaps humorously evoking the image of a jester's head or a tongue moving in jest. the suffix '-ish' is of old english origin, used to form adjectives meaning 'having the qualities of'. therefore, 'waggish' literally means 'having the qualities of a wag', evolving from a playful physical motion to describe a specific type of facetious humor.

this word is a simplex formation. it is derived from the english noun 'wag', meaning a humorous person or wit, combined with the adjectival suffix '-ish'. the root 'wag' itself is not a classical morpheme but an early modern english word.