late 14c., from Anglo-French enseurer, from en- "make" (see en- (1)) + Old French seur "sure" (see sure); probably influenced by Old French asseurer "assure." Compare insure. Related: Ensured; ensures; ensuring.
This nest egg will ensure a nice retirement for us
enslave
enslavement
ensnare
ensorcell
ensue
ensure
-ent
entablature
entail
entangle
entanglement
