tenon

/T EH1 N AH0 N/
noun
  1. 1

    A projecting member left by cutting away the wood around it, and made to insert into a mortise, and in this way secure together the parts of a frame.

verb
  1. 1

    To make into a tenon.

    First we'll tenon this part, then we'll make a mortise that will fit it on that part.

  2. 2

    To fit with tenons.

Source: https://en.wiktionary.org/wiki/tenon