Ἀντιπέτρου βήματος

["Rock-like"] because instead of stone it was brazen. Or a base [made of something] equivalent to rock, the one about the same as rock. But the threshold was brazen. Sophocles [writes]: "do not set your foot beyond that rock-like base".¹
"Bronze" [is] the material itself; a "brazen" statue [is] the derivative adjective, like "gold" and "golden".²