calk

Etymology 1

noun

1. A pointed projection on a horseshoe to prevent its slipping.
2. A spike on the sole of a boot to prevent slipping, particularly used in logging

verb

1. (possibly dated) Alternative spelling of caulk
   When a joint was calked, the bell piece was then separated, April 1 1915, Gas Age, volume 35, page 328
2. To make an indentation in the edge of a metal plate, as along a seam in a steam boiler or an iron ship, to force the edge of the upper plate hard against the lower and so fill the crevice.

Etymology 2

From French calque, ultimately derived from Latin calcō (“I trample”) . Doublet of calque.

verb

1. To copy (a drawing) by rubbing the back of it with red or black chalk, and then passing a blunt stylus or needle over the lines, so as to leave a tracing on the paper or other thing against which it is laid or held.