This root form (lemma) is used in 1 different forms in the NT: συνεπιμαρτυροῦντος (PPA·GMS).
It is glossed in 1 way: ‘testifying_with them’.
OET HEB 2:4 Greek word=συνεπιμαρτυροῦντος (sunepimarturountos) Morphology=PPA·GMS English gloss=‘testifying_with them’ SR GNT HEB 2:4 word 2