prelomiti

1. to break in two; to snap
   Prelomio je hleb i dao mi polovinu. — He broke the bread in two and gave me half.
   Grana se prelomila pod snegom. — The branch snapped under the snow.
2. (of a decision) to finally make up one's mind
   Posle mesec dana razmišljanja, prelomila je i dala otkaz. — After a month of thinking, she finally made up her mind and quit.
   Moraš već jednom da prelomiš. — You have to make up your mind at last.
3. (in publishing) to lay out; to typeset
   Dizajner je prelomio knjigu za dva dana. — The designer laid out the book in two days.
4. (of light, in physics) to refract
   Prizma je prelomila belu svetlost u sve boje duge. — The prism refracted the white light into all the colours of the rainbow.
   Zrak se prelomio na površini vode. — The ray refracted at the surface of the water.

The imperfective is prelamati.