αθωωτής

From LSJ

ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm

Source

Greek Monolingual

ο (θηλ. -ώτρια)
αυτός που αθωώνει κάποιον με τη μαρτυρία του.
[ΕΤΥΜΟΛΟΓΙΑ < αθωώνω.
ΠΑΡ. αθωωτικός].