3. to soothe, calm, or mollify: to assuage his fears; to assuage her anger.
語源から単語をおぼえるのが苦手だったんだけど、 ブログならできそうな気がしますね。
[Origin: 1250?1300; ME aswagen < OF asouagier < VL *assu?vi?re, equiv. to L as- as- + -su?vi?re, v. deriv. of L su?vis agreeable to the taste, pleasant (cf. suave; akin to sweet)]