Dictionary.net

Ready: quick: dexterous: eager-said of persons, and especially of sailors; as, to be yare at the helm. "Be yare in thy preparation."-Shak.: easily wrought: answering quickly to the helm: swift: lively-said of a ship. "The lesser (ship) will come and go, leave and take, and is yare, whereas the other is slow."-Raleigh.

Briskly: dexterously: yarely. Shak.