Pertaining to, or used in, conversation, esp. common and familiar conversation; conversational; hence, unstudied; informal; as, colloquial intercourse; colloquial phrases; a colloquial style.
referring to an expression or language use that is appropriate in informal situations but not in formal ones. referring to an expression or style that is considered old- fashioned or folksy, as Aw, shucks. n. colloquialism. combining form a bound base or root designed to be combined with another combining form or word to form a new word, as bio- and -graphy of biography. Note: Combining forms are most commonly found in words derived from Latin and Greek. Through the linguistic process of clipping, some combining forms become words in themselves, as bio, metro, and porno.