Greek: λυτρωτης [lutrôtês] (Noun masculine). From λυτροω [lutroô]. A ransomer, redeemer; deliverer, liberator.

λυτρωτης [lutrôtês] appears 1 time in the NT:

(1) Acts 7: 35
This Moses whom they refused, saying, Who made thee a ruler and a judge? the same did God send [to be] a ruler and a deliverer by the hand of the angel which appeared to him in the bush. - λυτρωτην [lutrôtên] Accus. sing.