last 2 
(lăst)
(lăst)v. last·ed, last·ing, lasts
v.intr.
1.
a. To continue in time; go on: The war lasted four years.
b. To continue; survive: The patient is not expected to last much longer.
2.
a. To remain in good or usable condition: Produce lasts longer if it is refrigerated. I wanted a car that would last.
b. To continue in force or practice: wondered if the marriage would last.
3. To remain in adequate supply: Will our water last?
v.tr.
1. To keep adequately supplied: left enough bread to last the family for the weekend.
2. To persist or endure for the entire length of; survive: hoped to last the season without injuring her leg again.
[Middle English lasten, from Old English lǣstan; see leis-1 in the Appendix of Indo-European roots.]