ἀκρίβεια G195
akríbeia · ak-ree'-bi-ah · Noun Feminine
from the same as ἀκριβέστατος; exactness:--perfect manner.
1 Occurrence in the King James Bible
Acts 22:3I am verily a man which am a Jew, born in Tarsus, a city in Cilicia, yet brought up in this city at the feet of Gamaliel, and taught according to the perfect manner of the law of the fathers, and was zealous toward God, as ye all are this day.