cohostess

Etymology

From co- + hostess.

noun

A female cohost.“Julia Meade assisted Ed as cohostess and chief product seller during and for a while after his Toast of the Town years.”

verb

Of a woman: To act as a joint host.“Erna had dragooned a reluctant Frau Ostlinger into cohostessing a lavish party at the consulate for the children of all the more prominent German-American families in New York.”