Merriam-Webster Collegiate Dictionary - dexter

 adjective  Etymology: Latin; akin to Old High German zeso situated on the right, Greek dexios  Date: 1562  1. relating to or situated on the right  2. being or relating to the side of a heraldic shield at the right of the person bearing it  • ~ adverb DEXTERITY  noun  (plural -ties)  Etymology: Middle French or Latin; Middle French dexterite, from Latin dexteritat-, dexteritas, from dexter  Date: 1518  1. mental skill or quickness ; adroitness  2. readiness and grace in physical activity; especially skill and ease in using the hands manual ~