Al*lay", v. t. To mix (metals); to mix with a baser metal; to alloy; to deteriorate. [Archaic] Fuller.

Al*lay", n. Alloy. [Obs.] Chaucer.

Al*lay", n. Alleviation; abatement; check. [Obs.]

Al*lay" (?), v. t. To diminish in strength; to abate; to subside. "When the rage allays." Shak.

Al*lay" (?), v. t. [imp. & p. p. Allayed (?); p. pr. & vb. n. Allaying.] [OE. alaien, aleggen, to lay down, put down, humble, put an end to, AS. ālecgan; ā- (cf. Goth. us-, G. er-, orig. meaning out) + lecgan to lay; but confused with old forms of allege, alloy, alegge. See Lay.] 1. To make quiet or put at rest; to pacify or appease; to quell; to calm; as, to allay popular excitement; to allay the tumult of the passions.

2. To alleviate; to abate; to mitigate; as, to allay the severity of affliction or the bitterness of adversity.

It would allay the burning quality of that fell poison.

Syn. -- To alleviate; check; repress; assuage; appease; abate; subdue; destroy; compose; soothe; calm; quiet. See Alleviate.