The crossword solution for the term 'PREFIX WITH 'DYNAMIC' OR 'SPACE'' is AERO. The prefix AERO is derived from the Greek word aer, meaning air or atmosphere. It is commonly used in scientific and technical terms to refer to air or space, such as aerodynamics, aerospace, and aeronautics. When combined with the words dynamic or space, it can be used to describe something related to air or space that is constantly changing or has a lot of energy.