allay
verb [ T ] formal uk/əˈleɪ/ us/əˈleɪ/
减轻，缓解（担忧、恐惧等）
If you allay a strong emotion felt by someone, such as fear or worry, you cause them to feel it less or to feel calm again.
The government is trying to allay public fears/concern about the spread of the disease. 政府正努力消除公众对疾病蔓延的恐惧／担心。