Loooooong time lurker, first time poster. I actually signed up to respond to this.
When I was in the public education system (the 80s and early 90s), we were taught the naming convention was an elaborate ruse to fool any invaders into attacking Greenland, thinking it would be nothing but verdant fields, and therefore worth attacking, while Iceland would remain protected. I guess this wouldn’t work so well if the attackers didn’t speak the language, or didn’t have a map with the names written on them.
This is absolutely what I was taught.
Thanks very much for the post,
-B
Welcome to FR.