coronal (noun) – a garland; a wreath; a circlet
BREAKDOWN: CORON- (wreath) + -AL (pertaining to)
— coronal is also an adjective meaning of or relating to a corona, a coronal, or the tip of the tongue
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.