IPA: /ˈtraɪˌkɔːrnəd/
KK: /ˈtraɪˌkɔrnərd/
Describing something that has three corners or points.
The tricornered hat was popular in the 18th century.
Tricornered → It is formed from "tri-" (meaning three) and "corner" (from Old French *corne*, meaning horn or angle) and the suffix "-ed" (indicating a state or condition). The word describes something that has three corners or angles.
Think of 'tri-' meaning three and 'corner' referring to an angle — so tricornered means having three angles.