The crossword solution for the term 'prefix for dynamic or nautical' is AERO. AERO is a prefix derived from the Greek word aer, meaning air or atmosphere. It is commonly used in words related to aviation, such as aerodynamics and aeronautics, as well as in words related to sailing, such as aeronautical and aerodynamics. AERO is also used in other words related to movement, such as aerobatics and aerodynamic.