"queer, characteristic of a quiz; teasing, shy," 1789, from quiz (n.) "odd or eccentric person" (1782), a word of unknown origin, + -ical. Related: Quizzically; quizzicality.
he had a quizzical expression
quittance
quitter
quiver
quixotic
quiz
quizzical
quo warranto
quod
quodlibet
quoin
quoit