Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
εστιμίσατο with antimony LXX.2Kgs.9.30
εστιβίζου with antimony LXX.Ezek.23.40

Liddell-Scott-Jones

στιβίζομαι (stibizomai) to tinge with antimony G:V

στιβίζομαι,

middle or passive, paint one's eyelids and eyebrows with black paint (στίβι), [LXX+1st c.BC+]

LSJ Scripture Refs: LXX.Ezek.23.40