Strong's #1109: gnostes (pronounced gnoce'-tace)
from 1097; a knower:--expert.
Thayer's Greek Lexicon:
́
gnōstēs
1) an expert, a connoisseur
Part of Speech: noun masculine
Relation: from G1097
Usage:
This word is used 1 times:
Acts 26:3: "because I know thee to be expert in all customs and"