Usage: 6 forms in 10 verses
Form Translated As     In Verse(s)
εξεπολέμησαν they subdued it by war LXX.Judg.9.52
εξεπολέμει wages war LXX.Josh.23.10
εκπολεμήσωμεν we shall wage war against LXX.Josh.10.4
εκπολεμήσασ waging war LXX.Josh.23.3
εκπολεμήσαντεσ waging war against LXX.Exod.1.10
εκπολεμήσαι to wage war LXX.Deut.20.19LXX.Josh.22.12LXX.Judg.10.9
to wage war against LXX.Deut.20.10LXX.Josh.9.2

Liddell-Scott-Jones

ἐκπολεμέω (ekpolemeō) to wage war G:V

ἐκπολεμέω-έω,

provoke to war, ἵν᾽ ἐκπολεμέωήσειε τοὺς Ἀθηναίους πρὸς τοὺς Λακεδαιμονίους [Refs 5th c.BC+]:— passive, ἐκπεπολεμῆσθαι πρὸς τὸν ἑαυτοῦ οἶκον [Refs 2nd c.AD+]

__II go to war with, [LXX]

LSJ Scripture Refs: LXX.Deut.20.10