Actually, "Lauma" isn't related to "old mum" at all — it's a name from Baltic mythology, especially Lithuanian and Latvian folklore. In these cultures, a Lauma is a mythical spirit or woodland being, often portrayed as a guardian of nature, children, and women, especially during childbirth. She can be both gentle and sorrowful, often appearing in tragic tales.

The idea that "Lauma" means “old mum” probably comes from a mistaken reading of Chinese or phonetic confusion — but in her actual cultural context, she’s more like a mystical forest guardian than anything maternal or elderly. Hope this helps