English
self-certify
From self- + certify.
Today it means
verb To confirm or certify something without the substantiation of another person or party.
Sources
Sources: Wiktionary, “self-certify”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / self-certify