Abbott-Smith Manual Greek Lexicon
ἐπι-μαρτυρέω (G1957)
1 * ἐπι-μαρτυρέω , -ῶ to bear witness to : c. acc et. inf., I Pe 5:12 ,†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain
Strong's G1957 · Greek
ἐπιμαρτυρέω
epimartureo · ep-ee-mar-too-reh'-o
from 1909 and 3140; to attest further, i.e. corroborate