Lexical Definition

‎ἡγεμονεύω‎ hēgemoneúō (hayg-em-on-yoo'-o) to govern ^G:V
from ‎ἡγεμών‎

be governor.

• to act as ruler

Abbott-Smith

* ἡγεμονεύω (< ἡγεμών),
1. to lead the way.
2. to lead in war, command (cf. Ramsay, Was Christ born at Bethlehem?; DCG, ii, 463 f.).
3. to be governor of a province: c. gen. loc., Lk 2:2 3:1.†

Abbott-Smith References

Liddell-Scott-Jones

ἡγεμονεύω-εύω,

Doric dialect ἁγ-, lead the way, προτὶ Ἴλιον [Refs 8th c.BC+]; πρὸς δώματα, ἀγορήνδε, λέχοσδε, δεῦρο, [ἡγεμονεύωεύσαντος 5th-6th c.BC: Plato Philosophus “Symposium” 197a: ">Refs 8th c.BC+]

__c dative person, [ἡγεμονεύωεύῃς 8th c.BC: Ilias Homerus Epicus “Illiad” 15.46 ">Refs 8th c.BC+]; ὁδὸν ἡ. to lead the way, ἐγὼ δ᾽ ὁδὸν ἡγεμονεύωεύσω [Refs 8th c.BC+]; ὕδατι ῥόον ἡ. make a course for the water, [Refs 8th c.BC+]
__II lead in war, rule, command, once in [Refs 8th c.BC+]; ἡγεμόνων ἡ. [Refs 5th c.BC+]; ἡ. τῆς σκέψεως to take the lead in it, [Refs 5th c.BC+]: absolutely, to have or take the command, [Refs 5th c.BC+]:— passive, to be ruled, ὑπό τινος [Refs 8th c.BC+]
__III to be governor, τῆς Συρίας [Refs 1st c.AD+]