lediti

1. (lediti se) to freeze; to ice over
   Voda se ledi na nula stepeni. — Water freezes at zero degrees.
   Noću se putevi lede, vozite pažljivo. — The roads ice over at night, drive carefully.
2. (of cold, fear) to chill; to freeze
   Severni vetar nam je ledio lica. — The north wind was freezing our faces.
   Od njegovog pogleda mi se ledila krv. — His stare made my blood run cold.
3. (+ acc.) to freeze; to turn into ice
   Jak mraz ledi vodu u baricama. — The hard frost freezes the water in the puddles.

In the sense "to freeze, ice over" it is usually used with se; the perfective is zalediti (se).