Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
κατακεκεντημένοι men being pierced through LXX.Jer.51.4
κατακέντει let them pierce them through LXX.Ezek.23.47

Liddell-Scott-Jones

κατακεντέω (katakenteō) to pierce through G:V

κατακεντέω-έω,

pierce through, [Refs 5th c.BC+]; prick, [Refs 2nd c.AD+]; stab severely, [Refs 1st c.BC+]; cut down, stab, δόρασι καὶ ξίφεσι [Refs 1st c.BC+]:—passive, [Refs 5th c.BC+]

__2 shoot down, [Refs 1st c.BC+]
__3 metaphorically, πάθη κ. τινάς [Refs 1st c.AD+] —passive, ὑπὸ ἀπιστίας κατακεντέωούμενοι[Refs]:—later form κατακεντέωάννυμι [Refs 2nd c.AD+]