Buck up
Buck up verb - To become glad or hopeful.
Cite this Source
Certify and Buck up. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/buck_up/certify
Buck up & Certify. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/buck_up/certify>.
Certify or Buck up. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/buck_up/certify.
Google Ngram Viewer shows how "buck up" and "certify" have occurred on timeline