Caulk Morpheme Caulk Type free base Denotation fill with lime Etymology Old Northern French cauquer; Late Latin calicare; Latin calx Evidence caulk, caulked, caulker, caulking, caulklike, caulks, caulky, recaulk, uncaulked Doublet Calx, Caulk See Also Calc, Calx, Chalk Share on FacebookTweetSave