[ im-pro-peer-ee-uh ]
/ ˌɪm prɒˈpɪər i ə /

noun (used with a plural verb)

Origin of Improperia

1875–80; < Late Latin, plural of improperium, equivalent to Latin improper(āre) to blame (apparently an unlearned conflation of improbāre to express disapproval and improprius incorrect or improperus not hastening) + -ium -ium Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020