Where does “Γραικός” come from?

Γραικός (Greek) comes from Latin Graecus, from Ancient Greek Γραικός, from Ancient Greek γραῖα, from Proto-Indo-European ǵerh₂- — to grow old, to mature.

Γραικός (Greek): Greek

Definitions

Greek

Ancestry of “Γραικός”, step by step

Step	Language	Word	Meaning
1	Latin	Graecus	Greek, Grecian, of or pertaining to the Greek...
2	Ancient Greek	Γραικός	Greek; a Graecian, a member of an ancient...
3	Ancient Greek	γραῖα	Graea, Boeotia; Greece
4	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 →