Morpheme
Sure
Type
free base
Denotation
safe, secure, reliable, confident
Etymology
Middle English sure, seur, sur; Middle French sur and/or Old French seur; Latin sēcūrus, from sē- + cūra
Evidence
sure, surely, sureness, unsure, ensure, surer, surest, ensurer, insure, insurance, assure, assurances, cocksure, surefire, insures, insured, insuring, ensured, ensures, ensuring, suresby, assuredly
Notes
sure and secure are doublets
