sustain
sus-tain
verb
To keep something going or in existence; to maintain a level.
"We must sustain our efforts to achieve success."
verb
To suffer or experience something unpleasant, such as an injury or loss.
"The building sustained considerable damage from the fire."
Thesaurus
Synonyms: corroborate, affirm, confirm, substantiate, support, nourish, nurture, hold up, hold, get, suffer, have
Antonyms: contradict, negate