ASSURE

transitive verb (~d; assuring) Etymology: Middle English, from Anglo-French asseurer, ~r, from Medieval Latin assecurare, from Latin ad- + securus secure Date: 14th century to make safe (as from risks or against overthrow) ; insure , to give confidence to , to make sure or certain ; convince , to inform positively , to make certain the coming or attainment of ; guarantee , see: ensure