campus (n.)youdaoicibaDictYouDict[campus 词源字典]
"college grounds," 1774, from Latin campus "a field," probably properly "an expanse surrounded" (by woods, higher ground, etc.), from PIE *kampos "a corner, cove," from root *kamp- "to bend" (cognates: Lithuanian kampus "corner," Polish kępa "cluster of trees or brush"). First used in college sense at Princeton.[campus etymology, campus origin, 英语词源]