nastati

1. to arise; to come into being; to originate
   Grad je nastao u dvanaestom veku. — The town came into being in the twelfth century.
   Ova pesma je nastala za jednu noć. — This song was created in a single night.
2. (of a state, situation) to set in; to ensue
   Posle njegovih reči nastala je tišina. — Silence fell after his words.
   Na stanici je nastao pravi haos. — Real chaos broke out at the station.

The source is usually introduced with "od" or "iz" + gen.: nastati od nečega; the imperfective is nastajati.