The crossword solution for the term 'Prefix with corn or form' is UNI. This prefix is derived from Latin and is used to mean 'ONE' or 'SINGLE'. It is commonly used in words such as 'UNIFORM', 'UNIFY', and 'unilateral'. It is often used to describe something that is singular or unique, such as a unit of measurement or a SINGLE entity. It can also be used to describe something that is composed of ONE part, such as a unicycle or a unified form.