[caulk] vt [ME caulken, fr. ONF cauquer to trample, fr. L calcare, fr. calc-, calx heel] (15c): to stop up and make tight against leakage (as a boat or its seams, the cracks in a window frame, or the joints of a pipe) -- caulk.er n
[2]caulk also caulk.ing n (1954): material used to caulk [3]caulk var of
[2]calk