δειδέχαται
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
English (LSJ)
v. δειδίσκομαι.
French (Bailly abrégé)
3ᵉ pl. pf. Pass. poét. au sens d’un prés., de δείκνυμι.
English (Autenrieth)
see δείκνῦμι.
Russian (Dvoretsky)
δειδέχαται: эп. 3 л. pl. pf.-praes. med. к δείκνυμι.