the.com/ponder
To stare at a problem until it surrenders, or you do.
means To think about something carefully and at length before reaching a decision or conclusion.
from From Latin ponderare, to weigh, from pondus, weight — so to ponder is literally to put a thought on the scales and watch it tip.
Weight classShares its root with ponderous and pound.
Mental gymImponderable means literally too heavy to weigh.
Slow by designImplies duration, not the snap of deciding.