Hypertext Webster Gateway: "Crossette"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Crossette \Cros*sette"\ (kr?s-s?t`), n. [F., dim. of crosse. See
{Crosier}.] (Arch.)
(a) A return in one of the corners of the architrave of a
door or window; -- called also {ancon}, {ear}, {elbow}.
(b) The shoulder of a joggled keystone.
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