K could be for Kara-Tur, but instead I'm going to do a short one on Krynn. Much is written on Dragonlance, so I'm just going to do briefly, the origin of the name of the world.
|All the Krynn most folk need.|
The idea of having a planetary name and then a continental name probably goes back to Greyhawk (campaign) which was set in the Flaeness (continent) which is on Oerth (world). That would drive the Dragonlance (campaign)/Ansalon (continent)/Krynn (world) trichotomy, and later the Forgotten Realms (campaign)/Faerun (continent) /Abeir-Toril (world) arrangement.
But for the name itself? Well, my younger brother married a young woman named Corinne. Playing around with the word, changing the C to a K, collapsing it into one word, and swapping out a vowel, double a consonent, I get Krynn.
So that's the secret origin of Krynn. My sister-in-law. Heck of an anniversary gift.