Usage: 11 forms in 20 verses
Form Translated As     In Verse(s)
πολιορκούσι they assault LXX.Judg.9.31
πολιορκούντων assaulting LXX.Judg.2.18
πολιορκούντα while assaulting LXX.Isa.37.8
πολιορκουμένη being assaulted LXX.Isa.1.8LXX.Isa.27.3
πολιορκήσουσιν shall assault LXX.Jer.19.9
πολιορκήσουσι they shall assault LXX.Isa.9.21
πολιορκήσαι to assault LXX.Isa.7.1LXX.Isa.37.9
πεπολιόρκημαι I have been assaulted LXX.Job.17.7
επολιόρκουν assaulted LXX.2Sam.20.15LXX.2Kgs.24.11
they assaulted LXX.Jer.39.1
they made assault LXX.2Kgs.16.5
επολιόρκησεν assaulted LXX.2Kgs.17.4LXX.2Kgs.17.5
επολιόρκει assaulted LXX.Josh.10.31LXX.2Kgs.18.9LXX.Dan.1.1
they assaulted LXX.Josh.10.29

Liddell-Scott-Jones

πολιορκέω (poliorkeō) to assault G:V

πολιορκέω-έω,

future -ήσω[Refs 5th c.BC+]:aorist -ησα[Refs 5th c.BC+]:—passive, future -ηθήσομαι[Refs 5th c.BC+]; in middle form -ήσομαι, [Refs 5th c.BC+]: aorist ἐπολιορκήθην [Refs 5th c.BC+]perfect πεπολιόρκημαι (ἐκ-) [Refs 5th c.BC+]: (πόλις, ἕρκος):—besiege, [Refs 5th c.BC+]; οἱ πολιορκοῦντες the besiegers, opposed to οἱ κατακεκλειμένοι, [Refs 5th c.BC+]:—passive, to be besieged, in a state of siege, [Refs 5th c.BC+]; also of a fleet, to be blockaded, [Refs 5th c.BC+]; of Scamander, to be blocked, dammed back, ὑπὸ Ἀχιλλέως [Refs 5th c.BC+]

__2 metaphorically, π. τῆς ψυχῆς τὸ φρόνημα [Refs 3rd c.AD+]:—passive, to be besieged, pestered, ὑπὸ τῶν συκοφαντῶν -ούμενοι πολιορκίαν [Refs 5th c.BC+]; of a banker, π. περὶ ἀργυρίου [Refs 3rd c.BC+]: in Medicine, to be blocked, [Refs 1st c.AD+]