A.T. Robertson Commentary Luke 1:28

"And he came in unto her, and said, Hail, thou that art highly favored, the Lord [is] with thee." — Luke 1:28 (ASV)

Highly favoured (κεχαριτωμενη). Perfect passive participle of χαριτοω and means endowed with grace (χαρις), enriched with grace as in Eph 1:6, non ut mater gratiae, sed ut filia gratiae (Bengel). The Vulgate gratiae plena "is right, if it means 'full of grace which thou hast received'; wrong, if it means 'full of grace which thou hast to bestow"' (Plummer). The oldest MSS. do not have "Blessed art thou among women" here, but in verse 42.