ἁμαρτωλός
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)
όν,
A erroneous, ἁμαρτωλότερον Arist.EN1109a33; erring, ἐν πᾶσιν Plu. 2.25c. 2 of bad character, δοῦλοι Phld.Ir.p.73 W.: c. gen., sinning against, θεῶν Michel 547.31 (Telmessus):—ἁμαρτωλὴ γέρων, barbarism in Ar.Th.1111. Adv. -ῶς Eup.24D. II Subst. ἁμαρτωλός, ὁ, sinner, LXX Ge.13.13, al., Ev.Luc.18.13, al.
German (Pape)
[Seite 117] sündhaft, sündig, LXX; N. T., ὁ, der Sünder.