Main Entry: ²calk

Variant(s): or caulk \ˈkȯk\

Function: noun

Etymology: probably alteration of calkin, from Middle English kakun, from Middle Dutch or Middle French dial.; Middle Dutch calcoen horse's hoof, from Middle French dial. (Walloon) calcain heel, from Latin calcaneum, from calc-, calx heel

Date: 1587

: a cleat on the shoe of a horse to prevent slipping; also : a similar device worn on the sole of a shoe