Inflected forms: al·layed, al·lay·ing, al·lays 1. To reduce the intensity of; relieve: allay back pains. See synonyms at relieve. 2. To calm or pacify; set to rest: allayed the fears of the worried citizens.
ETYMOLOGY:
Middle English aleien, from Old English lecgan, to lay down : -, intensive pref. + lecgan, to lay; see lay1.