LATIN PREFIX 6 EXTRA-(outside), INTRA(within) extracurricular outside the regular curriculum, or course of study extraneous coming from or existing outside; foreign; not essential extravagant 1. outside the bounds of reason; excessive 2. spending lavishly; wasteful intramural within the walls or boundaries (of a school, college, etc.); confined to members (of a school, college, etc) intraparty ..