Affirm
Affirm verb - To state as a fact usually forcefully.
Buy
Buy verb - To get possession of (something) by giving money in exchange for.
Cite this Source
Buy and Affirm. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/affirm/buy
Affirm & Buy. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/affirm/buy>.
Buy or Affirm. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/affirm/buy.
Google Ngram Viewer shows how "affirm" and "buy" have occurred on timeline