süstina

Could you clarify what "süstina" refers to? For example, is it a place, a person (surname), a concept, a product, or something else? Also, should the article reflect a particular language or country (e.g., Estonian, Turkish, etc.), and do you want it to cover historical context, notable uses, or general definition? Once I know which sense you have in mind, I can write a concise, neutral wiki-style article under 300 words.