The adjective priggish comes from the eighteenth century prig, "precise in speech and manners," which was also used to mean "religiously devout." Earlier, a prig was "a petty thief."

What is a priggish?

adjective. fussy about trivialities or propriety, especially in a self-righteous or irritating manner:At the beginning of the book, Eustace is an unpleasant, unlikable, and priggish character.

What is a priggish person called?

5 letter answer(s) to priggish person

PRUDE. a person excessively concerned about propriety and decorum.