GNU Collaborative International Dictionary of English

last match results

Found one definition

1.       
   -or suff. [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.
   
   [1913 Webster]
   
   
   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.
   
   [1913 Webster]