ἄλπνιστος
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)
η, ον, Sup. of ἄλπνος (only in compd. ἔπαλπνος, q.v.),
A sweetest, loveliest, Pi.I.5(4).12; cf. ἀλπαλέον (cod. -αῖον) · ἀγαπητόν, Hsch. (Cf. ἔλπω (ϝέλπω), Lat. volup.)