See conciliate in Webster's New World Roget's A-Z Thesaurus II
verb
To ease the anger or agitation of:
appease, assuage, calm (down), dulcify, gentle, mollify, pacify, placate, propitiate, soften, soothe, sweeten. Idiom: pour oil on troubled water. See calmTo reestablish friendship between:
make up, reconcile, reunite. See love
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