Strong's Greek #1109
γνώστην

Englishman's Concordance (References)

γνώστην gnōstēn — 1 Occurrence

Acts 26:3 - N-AMS
GRK:μάλιστα γνώστην ὄντα σε
NAS: especially because you are an expert in all
KJV: thee to be expert in all customs
INT: especially acquainted being you