Coak

1. v. t. To unite, as timbers, by means of tenons or dowels in the edges or faces.
2. n. See Coke, n.
3. n. A kind of tenon connecting the face of a scarfed timber with the face of another timber, or a dowel or pin of hard wood or iron uniting timbers.
4. n. A metallic bushing or strengthening piece in the center of a wooden block sheave.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.