τετρᾶς
From LSJ
Τραφὲν ὄρεσι καὶ φάραγξιν ἀγρίαις, κήρυξ πέφυκα τῆς λόγου ὑμνῳδίας. Φωνήν μὲν οὐκ ἔναρθρον, εὔηχον δ' ἔχω (Byzantine riddle) → Raised in the mountains and wild ravines, I have become the herald of hymns that are sung. I have no articulate voice...
English (LSJ)
ᾶντος, ὁ,
A quadrant of a circle, Vitr.4.2.4, 4.3.4, 10.6.1. II a coin, Lat. quadrans, Hsch.; cf. ἑξᾶς; on the accent cf. Hdn.Gr.1.56.
