πιστικῶς
From LSJ
ῥεῖα δ' ἀρίζηλον μινύθει καὶ ἄδηλον ἀέξει, ῥεῖα δέ τ' ἰθύνει σκολιὸν καὶ ἀγήνορα κάρφει → easily he humbles the proud and raises the obscure, and easily he straightens the crooked and blasts the proud (Hesiod, Works and Days 6-8)
French (Bailly abrégé)
adv.
fidèlement.
Étymologie: πιστικός¹.
Russian (Dvoretsky)
πιστικῶς: верно: π. ἔχειν πρός τινα Plut. сохранять верность кому-л.