κεντρικός
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)
ή, όν,
A of or belonging to a cardinal point, σχῆμα Vett.Val.134.26. II Adv. -κῶς, metaph., ὁ νοῦς . . ἀδιαιρέτως καὶ κ. οἶδε τὰ διαιρούμενα Phlp.in de An.542.29.