cohostess

co- +‎ hostess

cohostess (plural cohostesses)

1. A female cohost.
   • 1971, Ronald W Lackmann, Remember television:

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

cohostess (third-person singular simple present cohostesses, present participle cohostessing, simple past and past participle cohostessed)

1. (rare) Of a woman: To act as a joint host.
   • 1979, Robert H. Pilpel, To the honor of the fleet, page 241:

     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.