πομφός
From LSJ
ἵνα οὖν μηδ' ἐν τούτῳ δῷ αὐτοῖς λαβήν (Photius, Fragments on the Epistle to the Romans 483.26) → so that he doesn't give them even here a handle (= an opportunity for refutation)
English (LSJ)
ὁ,
A blister on the skin, Hp.Mul.2.118, Morb.2.70. (Cf. πομφόλυξ, πομφολύζω; perh. akin to πέμφιζ.)