From a primary word κολυμβος kolumbos (to {tend} that {is} take care of); properly to provide {for} that {is} (by implication) to carry off (as if from harm; generally obtain): - {bring} receive.
Neuter comparative of a derivative of the base of G2865 (meaning properly well {dressed} that {is} nice); figuratively convalescent: - + began to amend.