Strong's #2231: hegemonia (pronounced hayg-em-on-ee'-ah)
from 2232; government, i.e. (in time) official term:--reign.
Thayer's Greek Lexicon:
̔́
hēgemonia
1) chief command, rule, sovereignty
1a) of the reign of a Roman emperor
Part of Speech: noun feminine
Relation: from G2232
Usage:
This word is used 1 times:
Luke 3:1: "the fifteenth year of the reign of Tiberius Caesar, Pontius Pilate"