Avouch
Avouch verb - To declare (something) to be true or genuine.
Cite this Source
Complain and Avouch. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/avouch/complain
Avouch & Complain. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/avouch/complain>.
Complain or Avouch. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/avouch/complain.
Google Ngram Viewer shows how "avouch" and "complain" have occurred on timeline