1620s, "small horse," from French bidet (16c.), of not known etymology. Originally in French "a little horse, a pony," thus "a vessel on a reduced narrow stand, which may be bestridden for bathing functions," a sense attested in English from 1766.
a basin for cleansing genitals and rectal area
- A small horse formerly allowed to each trooper or dragoon to carry their baggage.
- some sort of bath tub for sitting bathrooms; a soothing sitz bath.
(n.) A small horse previously permitted to each trooper or dragoon for carrying his luggage.
- (n.) A kind of bathtub for sitting baths; a sitz bath.