certiorari
Concise Oxford English Dictionary © 2008 Oxford University Press:
certiorari /ˌsəːtɪə(ʊ)ˈrɑːri/
▶noun Law a writ by which a higher court reviews a case tried in a lower court.
– origin ME: from Law L., ‘to be informed’, a phr. orig. occurring at the start of the writ, from certiorare ‘inform’, from certior, compar. of certus ‘certain’.
'certiorari' also found in these Oxford entries:

