substantiate
/səbˈstænʃɪeɪt/verb
with obj.
- provide evidence to support or prove the truth of证实, 证明：
they had found nothing to substantiate the allegations.
他们没有找到任何东西证实这些指控。
派生词
substantiation
noun词源
mid 17th cent.: from medieval Latin substantiat- 'given substance', from the verb substantiare.