Usage: 3 forms in 9 verses
Form Translated As     In Verse(s)
βούτυρον butter LXX.Gen.18.8LXX.Deut.32.14LXX.Judg.5.25LXX.2Sam.17.29LXX.Prov.30.33LXX.Isa.7.15LXX.Isa.7.22
βουτύρω butter LXX.Job.29.6
βουτύρου butter LXX.Job.20.17

Liddell-Scott-Jones

βούτυρον (bouturon) butter G:N-N

βούτυρον-τῡρον, τό,

butter, τὸ πῖον τοῦ γάλακτος [LXX+5th c.BC+]:—also βούτυροντῡρος, , [Refs 2nd c.AD+]

__II a plant, [Refs 5th c.AD+]; ὄζει τόπος β. [Refs 2nd c.AD+]

LSJ Scripture Refs: LXX.Gen.18.8