Where does “劣化ウラン” come from?

劣化ウラン (Japanese) comes from Japanese ウラン, from German Uran, from Latin Ūranus, from Ancient Greek οὐρανός, from Ancient Greek ϝορσανός.

劣化ウラン (Japanese): depleted uranium

Definitions

Step	Language	Word	Meaning
1	Japanese	ウラン	uranium
2	German	Uran	uranium
3	Latin	Ūranus	Uranus god of the sky
4	Ancient Greek	οὐρανός	the vaulted sky, on which the stars were attached...
5	Ancient Greek	ϝορσανός	—