To propitiate means to do something nice or make an offering to calm someone's anger or win their favor, especially when you've done something wrong or need their help.

You might try to propitiate an annoyed teacher by staying after class to help clean up, or propitiate an upset friend by apologizing sincerely and doing something thoughtful for them. In ancient Rome, people would propitiate their gods with gifts at temples, hoping to avoid bad luck or gain blessings. Sailors in some cultures would throw valuables overboard to propitiate the sea, believing it would calm storms.

The word carries a sense of trying to soothe anger or displeasure through deliberate action. It involves making a peace offering or gesture to restore goodwill: an apology combined with thoughtful action that demonstrates your desire to make things right. When you propitiate someone, you're actively working to turn their irritation into acceptance or their coldness into warmth.

Propitiation is the noun form, meaning the act of propitiating or the offering itself. These words appear more often in historical or formal contexts than in everyday conversation, but they capture something specific: that careful effort to win back favor when someone has the power to help or harm you.