sustain

verb

1. lengthen or extend in duration or space"We sustained the diplomatic negotiations as long as possible"
2. undergo (as of injuries and illnesses)"She suffered a fracture in the accident"
3. provide with nourishment"We sustained ourselves on bread and water"
4. supply with necessities and support"She alone sustained her family"
5. be the physical support of; carry the weight of"The beam holds up the roof"
6. admit as valid"The court sustained the motion"
7. establish or strengthen as with new evidence or facts"his story confirmed my doubts"