διαυχενίζομαι
From LSJ
δόξειε δ' ἂν τῆς κυριωτάτης καὶ μάλιστα ἀρχιτεκτονικῆς. τοιαύτη δ' ἡ πολιτικὴ φαίνεται → It would seem to belong to the most authoritative art and that which is most truly the master art. And politics appears to be of this nature.
English (LSJ)
A hold the neck erect, Eun.Hist.pp.263,272 D.
German (Pape)
[Seite 609] den Nacken zurückwerfen, eigtl. von Pferden, u. übertr., sich brüsten; Suid.; Poll. 1, 218.