istonici
Istonici is a term that appears to be a misspelling or a less common transliteration. It is possible the intended term is "estonici," referring to people or things related to Estonia. Estonia is a country located in the Baltic region of Northern Europe. Historically, the region has seen various influences, and its people, the Estonians, have their own distinct language and culture.
If "istonici" is a misspelling of another term, its meaning would depend entirely on the correct spelling.