Mitering

[mahy-ter] /ˈmaɪ tər/

noun
1.
the official headdress of a bishop in the Western Church, in its modern form a tall cap with a top deeply cleft crosswise, the outline of the front and back resembling that of a pointed arch.
2.
the office or rank of a bishop; bishopric.
3.
Judaism. the official headdress of the ancient high priest, bearing on the front a gold plate engraved with the words Holiness to the Lord. Ex. 28:36–38.
4.
a fillet worn by women of ancient Greece.
5.
Carpentry. an oblique surface formed on a piece of wood or the like so as to butt against an oblique surface on another piece to be joined with it.
6.
Nautical. the inclined seam connecting the two cloths of an angulated sail.
verb (used with object)
7.
to bestow a miter upon, or raise to a rank entitled to it.
8.
to join with a .
9.
to cut to a miter.
10.
to join (two edges of fabric) at a corner by various methods of folding, cutting, and stitching.
/ˈmaɪtə/
noun, verb
1.
the usual US spelling of mitre
n.

alternative spelling of mitre (see -re).

in the carpentry sense of “joint at a 45 degree angle,” 1670s, perhaps from mitre, via notion of joining of the two peaks of the folded cap. As a verb from 1731.