στηθάριον
From LSJ
νύκτα οὖν ἡμέραν ποιούμενος → without delay, as soon as possible, as fast as possible, making the night day, making night into day, turning night into day
English (LSJ)
τό,
A bust, σ. ἐπὶ βάσεως Hermes Trism. in Rev.Phil.32.260.
Greek (Liddell-Scott)
στηθάριον: τό, προστερνίδιον πολεμικοῦ ἵππου, Βυζ. 2) προτομή, Βυζ.