Here are some possibilities and how to pronounce them:
* Jotun: This is a Norwegian word, pronounced "YO-toon" with a long "O" sound similar to the "O" in "tone." Jotun is a giant in Norse mythology.
* Jutum: This is not a common word, but it could be pronounced "JU-tum" with a short "U" sound similar to the "U" in "cup."
* Jotting: This word means "a brief note," and is pronounced "JOT-ing" with a short "O" sound similar to the "O" in "hot."
Without further context or information, it's impossible to give a definitive pronunciation for "Jottum." Please provide more details if you can.