Source : Webster's Revised Unabridged Dictionary (1913)

Achate \Ach"ate\, n.
   An agate. [Obs.] --Evelyn.

Achate \A*chate"\, n. [F. achat purchase. See {Cates}.]
   1. Purchase; bargaining. [Obs.] --Chaucer.

   2. pl. Provisions. Same as {Cates}. [Obs.] --Spenser.