The term DISK SOLAR is composed of two words, DISK and SOLAR. DISK is a noun that refers to a flat, round object with a hole in the middle, usually made of metal, plastic, or paper, used for storing data. SOLAR is an adjective that describes something related to the sun, such as energy or radiation. The crossword solutions for this term are ERASE (5 letters) and ETTE (4 letters). ERASE is a verb meaning to remove or delete something, while ETTE is a suffix used to form a diminutive noun, usually indicating smallness or endearment.