φιλοψυχέω
From LSJ
ὅτι μέντοι καὶ ἡ χρῆσις τῶν τρόπων, ὥσπερ τἆλλα πάντα καλὰ ἐν λόγοις, προαγωγὸν ἀεὶ πρὸς τὸ ἄμετρον, δῆλον ἤδη, κἂν ἐγὼ μὴ λέγω → however, it is also obvious, even without my saying so, that the use of figures of speech, like other literary adornments, is something that has always tempted toward excess
English (LSJ)
A love one's life, with collat. sense of to be cowardly or faint-hearted, Tyrt.10.18, E.Hec.315, Heracl.518,533, D.60.28, etc.; φ. ὑπὲρ τῆς ἀρετῆς Lys.2.25.
