PESSARY Meaning of PESSARY in English n. (pl. -ies) Med. 1. a device worn in the vagina to support the uterus or as a contraceptive. 2 a vaginal suppository. Etymology: ME f. LL pessarium, pessulum f. pessum, pessus f. Gk pessos oval stone Oxford English vocab. Оксфордский английский словарь. 2012