Etymology
Advertisement
intramural (adj.)
1846, "within the walls, being within the walls or boundaries" (of a city, building, etc.), from intra- "within" + Latin muralis "pertaining to a wall," from murus "wall" (see mural). Equivalent to Late Latin intramuranus. Originally in English in reference to burials of the dead; in reference to college activities from 1871 (first at Columbia).
Related entries & more 
Advertisement
parietal (adj.)

early 15c., "pertaining to the walls of a cavity in the body," from Late Latin parietalis "of walls," from Latin paries (genitive parietis) "wall" (of a building), a word of unknown origin. In U.S. also "pertaining to the residents and rules of a college or university" (1837; compare intramural). Combining form is parieto-.

Related entries & more