οἴκοι
ἐξ ὀνύχων λέοντα τεκμαίρεσθαι → judge by the claws, judge by a slight but characteristic mark, small traits give the clue to the character of a person, deduce something from a small indication, identify a lion from its claws
English (LSJ)
Adv. (old loc. of οἶκος)
A at home, in the house, οὔ νυ καὶ ὑμῖν οἴ. ἔνεστι γόος . .; Il.24.240 ; οἴ. βέλτερον εἶναι Hes.Op.365, etc. ; τὰ οἴ. one's domestic affairs, X.Cyr.6.1.42 ; home products, Pl.R.371a ; ἡ οἴ. δίαιτα S.OC352 ; ἡ δ' οἴ. (sc. πόλις) one's own country, ib.759 ; αἱ οἴ. τιμαί Isoc.Ep.4.7. 2 = οἴκαδε 1, Zos.2.27.2.
Greek (Liddell-Scott)
οἴκοι: Ἐπίρρ. ἐν τῷ οἴκω, Λατ. domi (πρβλ. οἴκοθι), οὔ νυ καὶ ὑμῖν οἴκοι ἔνεστι γόος... Ἰλ. Ω. 240, πρβλ. Ἡσ. Ἔργ. κ. Ἡμ. 363, κτλ.· τὰ οἴκοι, αἱ οἰκιακαὶ ὑποθέσεις, Ξεν. Κύρ. 6. 1, 42, Πλάτ. Πολ. 371Α· οὕτως, ἡ οἴκοι δίαιτα Σοφ. Ο. Κ. 352· ἡ δ’ οἴκοι (ἐξυπακ. πόλις), ἡ πατρίς, αὐτόθι 759· αἱ οἴκοι τιμαὶ Ἰσοκρ. 414Ε. Πρβλ. οἴκει. 2) = οἴκαδε, ἀπαγαγεῖν Ζώσιμος 27, 11.