I wonder why Greenland was named Greenland and not Whiteland?
You’re joking of course.
Here a good read on that:
WHY IS ICELAND CALLED ICELAND? WHY IS GREENLAND CALLED GREENLAND? DEPRESSED VIKINGS AND MEDIEVAL SALES TALK!
https://seatrips.is/called-iceland/
Because during the Medieval Warm Period it would be warm along the coast (where the Vikings would have their villages), and the water melting off the glacier would make the coastal area VERY green.