Where does “Griicheland” come from?

Griicheland (Luxembourgish) comes from German Griechenland, from German Grieche, from Middle High German krieche, from Old High German chreah, from Proto-West Germanic krēk, from Latin Graecus, from Ancient Greek Γραικός, from Ancient Greek γραῖα — to grow old, to mature.

Ancestry of “Griicheland”, step by step

Step	Language	Word	Meaning
1	German	Griechenland	Greece
2	German	Grieche	a Greek
3	Middle High German	krieche	—
4	Old High German	chreah	—
5	Proto-West Germanic	krēk	Greek
6	Latin	Graecus	Greek, Grecian, of or pertaining to the Greek...
7	Ancient Greek	Γραικός	Greek; a Graecian, a member of an ancient...
8	Ancient Greek	γραῖα	Graea, Boeotia; Greece
9	Proto-Indo-European	ǵerh₂-	to grow old, to mature

Every word from Proto-Indo-European ǵerh₂- →Every word from Ancient Greek γραῖα →Every word from Ancient Greek Γραικός →