From Longman Dictionary of Contemporary Englishallayal‧lay /əˈleɪ/ verb [transitive] → allay (somebody’s) fear/concern/suspicion etc→ See Verb table
Examples from the Corpus
allay• Kelly argues that the removal of the requirement to aid decision-makers would allay fears.• In this way he can discuss current information with his wife and help to allay her fears.• Showing her his identity card went some way towards allaying her suspicions.• But as if to allay our disappointment, teams of curious sea lions kept popping up near our kayaks.• One might well conclude the dismissal was a feint, a hollow gesture to allay perceived public outrage.• The government is anxious to allay public fears over the safety of beef.• The concessions in the spring parliament of 1340 did not, however, allay the discontent in the countryside.• They have not taken the time to allay their own worries and uncertainties.• At the conclusion of the Casablanca Conference in January 1943, Roosevelt tried to allay them.Origin allay Old English alecgan, from lecgan; LAY1 