caulk
noun
[ kɔːk ]
• a waterproof filler and sealant, used in building work and repairs.
• "use silicone caulk to ensure that you have an all-season moisture seal"
caulk
verb
• seal (a gap or seam) with caulk.
• "caulk all cracks between the trim and siding or masonry"
Origin:
late Middle English (in the sense ‘copulate’, used of birds): from Old Northern French cauquer, caukier, variant of cauchier ‘tread, press with force’, from Latin calcare ‘tread’, from calx, calc- ‘heel’.
