1670-80; perhaps < French, diminutive of templetemple3 (see -et), but semantic link is unclear
British Dictionary definitions for templet
template
/ˈtɛmplɪt/
noun
1.
a gauge or pattern, cut out in wood or metal, used in woodwork, etc, to help shape something accurately
2.
a pattern cut out in card or plastic, used in various crafts to reproduce shapes
3.
a short beam, made of metal, wood, or stone, that is used to spread a load, as over a doorway
4.
(biochem) the molecular structure of a compound that serves as a pattern for the production of the molecular structure of another specific compound in a reaction
Word Origin
C17 templet (later spelling influenced by plate), probably from French, diminutive of temple³