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 within a party
intrastate within a state
intravenous within or by way of the veins