ἔμπεδον
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 (Slater)
ἔμπεδον constantly ὧν θαλίαις ἔμπεδον εὐφαμίαις τε μάλιστ' Ἀπόλλων χαίρει (P. 10.34) ἑ]ορταὶ ἔμπεδο[ν (supp. Lobel.) Θρ. 4. 15.
Russian (Dvoretsky)
ἔμπεδον: adv.
1) непоколебимо (μένειν Hom.);
2) неизменно, постоянно, непрерывно (θέειν Hom.; χαίρειν Pind.);
3) твердо, уверенно: ἴσθι τόδ᾽ ἔ. Soph. будь в этом уверен.