ἀργυροθώραξ
From LSJ
διώκει παῖς ποτανὸν ὄρνιν → a boy chases a bird on the wing, vain pursuit
English (LSJ)
-ᾱκος, ὁ, with a silver breastplate, Iamb.post Polem.p.49 Hinck.
Greek (Liddell-Scott)
ἀργῠροθώραξ: -ᾱκος, ὁ, ὁ ἀργυροῦν ἔχων θώρακα, Ρήτορες (Walz) 1. 531.