...its interesting to note that words *dex- (as a prefix with the meaning of "right") have the same figurative meaning (dexterity). The word dexiotes (ÄÅÎÉÏÔÇÓ) in both classical and contemporary Greek means dexterity (
http://www.perseus.org/cgi-bin/ptext?doc=Perseus%3Atext%3A1999.04.0057%3Aentry%3D%2324088)