Usage: 3 forms in 3 verses
Form Translated As     In Verse(s)
μαγείρων cooks LXX.Ezek.46.24
μαγείρω cook LXX.1Sam.9.23
μάγειροσ cook LXX.1Sam.9.24

Liddell-Scott-Jones

μάγειρος (mageiros) a male cook G:N-N

μάγειρος-ος, ,

Doric dialect μάγῑρος [Refs 5th c.BC+]; but Attic dialect μάγειρος [Refs 5th c.BC+], both forms frequently in later Inscrr., Papyrus, and codices; Aeolic dialect διὰ τοῦ μάγοιρος (assuming variant) [Refs 5th c.BC+]:— slaughterer, butcher (meat-salesman), and cook (these functions being frequently combined in one person), [Refs 5th c.BC+]; public cook, παρὰ τῶν μαγείρων, opposed to π. τῶν ἰδιωτῶν, [Refs 4th c.BC+]; butcher, meat-salesman, [Refs 5th c.BC+]; λόγος μαγείρου butcher's bill, [Refs 1st c.AD+]; μ. κατ᾽ οἶκον, οἱ ἐν ἀγορᾷ μ., [Refs 2nd c.AD+]; περὶ μαγείρου τοῦ ἀποδράντος [Refs 3rd c.BC+]; officiating at sacrifices, [Refs 3rd c.BC+]; acting as waiter, [Refs 8th c.BC+], frequently in Comedy texts; opposed to ὀψοποιός, [Refs 4th c.BC+]; but ={ὀψοποιός}, [Refs 3rd c.BC+]; μάγειρος cook for fish and meat, opposed to οἰνοχόος and σιτοποιός (baker), [Refs 1st c.AD+]