One of the mysteries of the English language finally explained.
Preservative; intended to preserve or protect.
1A place in which people, things, etc., are protected or preserved. rare.
2Chiefly US. A room for storing perishable foodstuffs at a low temperature; an apparatus for preserving perishable foodstuffs; (also) a factory for the preparation of preserved foodstuffs. Now chiefly historical.
Mid 17th century; earliest use found in Joseph Hall (1574–1656), bishop of Norwich, religious writer, and satirist. From post-classical Latin praeservat-, past participial stem of praeservare preserve + -ory, perhaps after conservatory.
In this article we explore how to impress employers with a spot-on CV.