ECCENTRIC

I. adjective Etymology: Middle English, from Medieval Latin ~us, from Greek ekkentros, from ex out of + kentron center Date: circa 1630 1. deviating from an established or usual pattern or style , deviating from conventional or accepted usage or conduct especially in odd or whimsical ways , 2. deviating from a circular path, located elsewhere than at the geometrical center, see: strange ~ally adverb II. noun Date: 1827 a mechanical device consisting of an ~ disk communicating its motion to a rod so as to produce reciprocating motion, an ~ person