πρυτανεύω
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)
(also βρυτανεύω, IG9(1).111 (Elatea), cf. πρυτανεῖον),
A to be πρύτανις or president, hold sway, ἀθανάτοισι among them, h.Ap.68; so of God, Ph.2.595. 2 to be chairman of a board, D.21.87; of a βουλή, POxy.2130.7 (iii A.D.), etc. II at Athens, hold the presidency, prop. of the tribe in order of πρυτανεία in βουλή and ἐκκλησία, ἔτυχεν . . ἡ φυλὴ [Ἀντιοχὶς] πρυτανεύουσα Pl.Ap.32b, cf. Grg.473e; Ἀκαμαντὶς ἐπρυτάνευε IG12.16, Th.4.118, etc.: sts. of an individual member of the πρυτανεία, IG12.39.14, al., Antipho 6.45; οἱ τότε πρυτανεύσαντες And.1.46. b generally, of the mover of a motion, ὁ πρυτανεύσας ταῦτα καὶ πείσας D.15.3. 2 π. περὶ εἰρήνης put the question on a motion for peace, this being the duty of the Prytanes, Ar.Ach.60; εἰρήνην πρυτανεῦσαι Isoc.4.121: hence, 3 π. τινὶ εἰρήνην obtain peace for another, Luc.Demon.9, cf. PStrassb.5.8 (Pass., iii A.D.); φιλίαν τισί D.C.46.11; πᾶσι τὰ ἀγαθά Aristid.Or.26(14).109; [αἱ Πλειάδες] τὸ ἔαρ ἡμῖν π. herald the spring, Procop.Gaz.p.141 B. III generally, control, regulate, joined with διοικεῖν, D.5.6:—Pass., πρυτανεύεσθαι παρά τινος to suffer oneself to be guided by one, Id.9.60. 2 metaph., δεῖπνον χαριέντως πεπρυτανευμένον served daintily, Alex.110.4; of persons, to be entertained, χορηγίᾳ βασιλικῇ Plu.2.602a.