21. Study, consider, reflect, weigh imply fixing the mind upon something, generally doing so with a view to some decision or action. Study implies an attempt to obtain a grasp of something by methodical or exhaustive thought: to study a problem. To consider is to fix the thought upon something and give it close attention before making a decision concerning it, or beginning an action connected with it: to consider ways and means. Reflect implies looking back quietly over past experience and giving it consideration: to reflect on similar cases in the past. Weigh implies a deliberate and judicial estimate, as by a balance: to weigh a decision.

Did you mean outstay?