The crossword solution for the term 'Prefix with Payment or Partisan' is NON. The prefix non- is used to indicate the opposite of something, such as nonpayment or nonpartisan. It is derived from the Latin word non meaning 'not' or 'NO'. Non- is often used in English to form adjectives and nouns that describe something that is not what it appears to be. For example, nonpayment means not paying, and nonpartisan means not favoring any particular political party.