The term 'BLY' can be solved by two different crossword solutions: Nellie (6 letters) and NELLY (5 letters). Nellie is a female given name of English origin, derived from the Greek name 'Eleanor'. It is a diminutive form of the name Eleanor, which means 'LIGHT'. NELLY is a variant spelling of Nellie, and is also a female given name of English origin. It is a diminutive form of the name Eleanor, which means 'LIGHT'.