• (v. t.) To place in particular circumstances; to invest with particular accidents or adjuncts. • (v. t.) To prove or confirm by circumstances; to enter into details concerning. Found on http://thinkexist.com/dictionary/meaning/circumstantiate/
Cir`cum·stan'ti·ate transitive verb [ imperfect & past participle Circumstantiated ; present participle & verbal noun Circumstantiating .] [ See Circumstantiating ] 1. To place in particular circumstances; to invest with ... Found on http://www.encyclo.co.uk/webster/C/82
circumstantiate 1. To set forth or to verify with circumstances. 2. To give detailed proof or description of. 3. To provide evidence to support an argument or an allegation. Found on http://www.wordinfo.info/words/index/info/view_unit/480/5
to set forth or support with circumstances or particulars: Documents circumstantiated her evidence. · to describe fully or minutely: He circumstantiated the accident. Found on https://www.infoplease.com/dictionary/circumstantiate