Webster's Revised Unabridged Dictionary · 1913

Templet

Templet , noun

[Late Latin templatus vaulted, from Latin templum a small timber.]

1.
A gauge, pattern, or mold, commonly a thin plate or board, used as a guide to the form of the work to be executed; as, a mason's or a wheelwright's templet.
2.
(Architecture) A short piece of timber, iron, or stone, placed in a wall under a girder or other beam, to distribute the weight or pressure.