pon·der 
/ˈpɑ:ndɚ/ verb
pon·ders; pon·dered; pon·der·ing /ˈpɑ:ndɚ/ verb : to think about or consider (something) carefully [+ obj] ▪ He pondered the question before he answered. ▪ The team pondered their chances of success. ▪ We pondered whether we could afford the trip. [no obj] — + on, over, or about ▪ She paused to ponder on the situation. ▪ We pondered over/about what to do.
