sub si·len·tio \ˌsəbsə̇ˈlenchēˌō, -bˌsīˈl-; -bsə̇ˈlentēˌō\adverb Etymology: Latin : under or in silence : without notice being taken or without making a particular point of the matter in question < assumed sub silentio that the Supreme Court would have the power to review … legislation — J.P.Roche >