This medicine will allay the pain.

She tried to allay their fears but only ended up heightening them.

By love alone is enmity allayed.

When his advances were rebuffed, he attempted to allay his rankled ego by publicly undermining her intelligence.

His calm words allayed my fear.

Beware... / Yet first 'twere best these billows to allay. / Far other coin hereafter ye shall pay / for crimes like these."

Much-musing, to the woodland nymphs I pray, / and Mars, the guardian of the Thracian plain, / with favouring grace the omen to allay, / and bless the dreadful vision.