English
testifier
From testify + -er.
A compound of testify + -er
Today it means
noun One who testifies; a witness.
Sources
Sources: Wiktionary, “testifier”. 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 / testifier