Where does “galaxie” come from?

galaxie (Middle English) comes from Old French galaxie, from Latin galaxiās, from Ancient Greek γαλαξίας, from Ancient Greek γάλα, from Proto-Indo-European glakt-.

Ancestry of “galaxie”, step by step

Step	Language	Word	Meaning
1	Old French	galaxie	—
2	Latin	galaxiās	the Galaxy, the Milky Way
3	Ancient Greek	γαλαξίας	the Milky Way galaxy; tailor's chalk; dogfish
4	Ancient Greek	γάλα	milk; milky sap; the Milky Way galaxy
5	Proto-Indo-European	glakt-	—

Every word from Proto-Indo-European glakt- →Every word from Ancient Greek γάλα →Every word from Ancient Greek γαλαξίας →