G3423–μνηστεύω–mnēsteuō

Now the birth of Jesus Christ was like this; for after his mother, Mary, was engaged to Joseph, before they came together, she was found pregnant by the Holy Spirit.

μνηστευθείσης mnēsteutheisēs “At the pledging”

to a virgin pledged to be married to a man whose name was Joseph, of the house of David. The virgin's name was Mary.

ἐμνηστευμένην emnēsteumenēn “betrothed”

to enroll himself with Mary, who was pledged to be married to him as wife, being pregnant.

ἐμνηστευμένῃ emnēsteumenē “betrothed”