κερδοσύνη
From LSJ
ἀλλ᾽ οὐδὲ εἷς τέκτων ὀχυρὰν οὕτως ἐποίησεν θύραν, δι᾽ἧς γαλῆ καὶ μοιχὸς οὐκ εἰσέρχεται → but no carpenter ever made a door so secure that a weasel or a womanizer could not pass through it
English (LSJ)
ἡ,
A cunning, craft: dat. κερδοσύνῃ as Adv., cunningly, Il.22.247, Od.4.251, 14.31: pl., ἐπὶ κερδοσύνας τετραμμένοι Cleanth. Hymn.1.28.
German (Pape)
[Seite 1424] ἡ, Schlauheit, Klugheit; Hom. nur im dat. κερδοσύνῃ, in adverbialer Bdtg, listig, kiüglich, Il. 22, 247 Od. 14, 30 u. öfter.