Webster's Revised Unabridged Dictionary · 1913

Douche

Douche , noun

[French, from Italian doccia, from docciare to flow, pour, from an assumed Late Latin ductiare, from Latin ducere, ductum, to lead, conduct (water). See Duct.]

1.
A jet or current of water or vapor directed upon some part of the body to benefit it medicinally; a douche bath.
2.
(Medicine) A syringe.