καταυθαδίζω

τινος
A. act or speak obstinately against, τινος Suid.:—Med., Men.Prot.p.102 D.:—also κατ‐ιάζομαι, defy, τῶν νόμων Just. Nov. 12.1.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project