πίτνημι
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)
poet. form of πετάννυμι,
A spread out, ἠέρα πίτνα (Ep. impf.) Il.21.7; πιτνὰς εἰς ἐμὲ χεῖρας stretching out his arms to me, Od.11.392; πίτναν τ' ἐς αἰθέρα χεῖρας (impf.) Pi.N.5.11; πίτνατε λεπταλέας στολίδας AP10.6 (Satyr.): metaph., excite, flutter, τὸ λεῖον φαλακρὸν ἡδονῇ πιτνάς S.Ichn.359:—Pass., ἀμφὶ δὲ χαῖται . . πίτναντο Il.22.402; θυμέλαι ἐπίτναντο χρυσήλατοι E.El.713 (lyr.); πίτνατο . . παστὸς θαλάμων AP7.711 (Antip.):—also πίτνω, only ἔπιτνον ἀλωήν Hes.Sc. 291.