留とめ継つぎ

noun

mitre joint; miter joint

A woodworking joint where two pieces are cut at an angle and joined, typically at a corner. Both 'mitre' (UK) and 'miter' (US) spellings are used.

• 額がく縁ぶちの角かどは留とめ継つぎで仕し上あげてある。

  The corners of the picture frame are finished with mitre joints.