coronation (noun) – the act or ceremony of crowning a king or queen
BREAKDOWN: CORON- (crown) + -ATE (to make or do) + -ION (act of)
This word is built on the root CORON-, which means meaning wreath, garland, crown, or something curved.
Common CORON- words include crown and coronary.
More esoteric CORON- words include coronal.