Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
κατεκόσμησεν adorned LXX.Exod.38.28
κατεκόσμησέ he adorned LXX.Isa.61.10

Liddell-Scott-Jones

κατακοσμέω (katakosmeō) to adorn G:V

κατακοσμέω-έω,

set in order, arrange, ἐπὴν.. δόμον κατακοσμέωήσησθε [Refs 8th c.BC+]; ἐπὶ νευρῇ κατεκόσμει πικρὸν ϊστόν was fitting it on the string, [Refs 8th c.BC+]; πόλιν καὶ ἰδιώτας κ. variant in [Refs 5th c.BC+]:—middle, κ. εἰς τὴν γνώμην τινός [Refs 1st c.AD+]:—passive, [Refs 5th c.BC+]

__2 fit out, equip, ὅπλοις κατακεκοσμημένος [Refs 5th c.BC+]; κ. τινὰ οἷον ἄγαλμα adorn, [Refs 5th c.BC+]
__II reduce to order, regulate, [Refs 1st c.AD+]:—passive, [Refs 5th c.BC+]