Category:-or

-or. Etym: [l. -or: cf. Of. -or, -ur, -our, f. -eur.]

1. A noun suffix denoting an act; a state or quality; as in error, Fervor, pallor, candor, etc.

2. A noun suffix denoting an agent or doer; as in auditor, one who Hears; donor, one who gives; obligor, elevator. It is correlative to -ee. In general -or is appended to words of latin, and -er to those Of english, origin. See -er.