IPA: /ˈhiːlpiːs/
KK: /ˈhilˌpēs/
A part that is made for or serves as the heel of a shoe or stocking.
The heelpiece of my new shoes is very comfortable.
Heelpiece → The word is formed from "heel" (from Old English "hæle", meaning the back part of the foot) and "piece" (from Old French "piece", meaning a part or fragment). The term "heelpiece" refers to a piece or part that is associated with the heel of a shoe or foot.
Think of the 'back part of the foot' ('heel') and a 'part' ('piece') — together they describe a piece related to the heel.