Source : Webster's Revised Unabridged Dictionary (1913)

Attemperate \At*tem"per*ate\, a. [L. attemperatus, p. p. of
   attemperare. See {Attemper}.]
   Tempered; proportioned; properly adapted.

         Hope must be . . . attemperate to the promise.
                                                  --Hammond.

Attemperate \At*tem"per*ate\, v. t.
   To attemper. [Archaic]