(1):

(v. t.) To diminish in strength; to abate; to subside.

(2):

(n.) Alloy.

(3):

(v. t.) 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.

(4):

(v. t.) To alleviate; to abate; to mitigate; as, to allay the severity of affliction or the bitterness of adversity.

(5):

(v. t.) To mix (metals); to mix with a baser metal; to alloy; to deteriorate.

(6):

(n.) Alleviation; abatement; check.