замисля

Etymology
From.

Verb

 * 1)  to think about
 * 2)  to think up, to ideate
 * 3)  to begin to think
 * 4)  to brood, to mull over, to cogitate to think deeply
 * 5)  to fret over, to engross one's thoughts in
 * 1)  to brood, to mull over, to cogitate to think deeply
 * 2)  to fret over, to engross one's thoughts in