Where does “Angerlartunnguaq” come from?

Angerlartunnguaq (Greenlandic) comes from Greenlandic Angerlartoq, from Greenlandic angerlartoq — the one who has returned home.

Ancestry of “Angerlartunnguaq”, step by step

Step	Language	Word	Meaning
1	Greenlandic	Angerlartoq	—
2	Greenlandic	angerlartoq	the one who has returned home