süstlaid
I’m not sure what “süstlaid” refers to. It isn’t a widely documented term in major reference sources, and its meaning can vary by language or domain. Could you clarify the intended meaning or context (for example: an Estonian linguistic term, a product or organization name, a cultural concept, or a fictional term)? If you can provide a source or domain, I can draft a concise, neutral wiki-style article under 300 words.
If you’re aiming for a generic wiki stub and there is no established definition yet, I can