* A misspelling: Perhaps you meant a different word, like "southward," "solicit," or "solicitous."
* A slang term: It might be a slang word or phrase used within a specific group or region, but it's not widely known.
* A fictional term: It could be a made-up word from a book, movie, or video game.
To understand the meaning, you'll need more context. Please provide:
* The source: Where did you encounter this word?
* The sentence or situation: How was the word used?
With more information, I can help you figure out what "sothlice" might mean.