ξύλον ἀγκύλον οὐδέποτ' ὀρθόν → a bent board is never straight
P. and V. κατήγορος, ὁ, ἡ.
prosecutor: P. and V. ὁ διώκων.
malicious accuser: Ar. and P. συκοφάντης, ὁ.