The two crossword solutions for the term PREFIX FOR MURAL are INTER and INTRA. INTER is a Latin prefix meaning 'BETWEEN' or 'AMONG, ' while INTRA is a Latin prefix meaning 'WITHIN' or 'INSIDE.' Both terms are used to describe relationships BETWEEN objects or people, and they can also be used as prefixes for words such as mural. For example, an intermural event would involve participants from multiple schools, while an intramural event would involve participants from the same school.