Webster's Revised Unabridged Dictionary · 1913

Sac

Sac (sak) , noun

(Ethnology) See Sacs.

Sac , noun

[See Sake, Soc.]

(O.Eng. Law) The privilege formerly enjoyed by the lord of a manor, of holding courts, trying causes, and imposing fines. — Cowell

Sac (sak) , noun

[French, from Latin saccus a sack. See Sack a bag.]

1.
See 2d Sack.
2.
(Biology) A cavity, bag, or receptacle, usually containing fluid, and either closed, or opening into another cavity to the exterior; a sack.