Sæll means happy or content. It’s one of the most common ways to greet someone and works well both between good friends and in a professional setting.

The longer form of sæll is either “be happy” or “be happy and blessed”. Strangely enough, the order of “be” and “happy” can change whether it is thought of as a hello or a goodbye.

If you’re addressing a close friend and you want to seem cool and casual, you can say sælir (the plural form) instead of sæll. It makes it sound like you are addressing them like a group (or that you’re talking down to them, as a joke of course).