OAR

I. noun Etymology: Middle English oor, from Old English ār; akin to Old Norse ār ~ Date: before 12th century a long pole with a broad blade at one end used for propelling or steering a boat, ~sman , ~ed adjective II. verb Date: 1610 transitive verb to propel with or as if with ~s ; row , intransitive verb to progress by or as if by using ~s