dean: [14] Etymologically, a dean is someone in charge of a group of ten people. That was the meaning of its ancestor, Greek dekānós, a word formed from déka ‘ten’. This eventually came to designate specifically someone in charge of ten monks, and this sense passed via late Latin decānus, Old French deien, and Anglo-Norman deen into English as the ‘head of a cathedral’. The modern French descendant of deien, doyen, was reborrowed into English in the 17th century. => doyen
dean (n.)
early 14c., from Old French deien (12c., Modern French doyen), from Late Latin decanus "head of a group of 10 monks in a monastery," from earlier secular meaning "commander of 10 soldiers" (which was extended to civil administrators in the late empire), from Greek dekanos, from deka "ten" (see ten). Replaced Old English teoeingealdor. College sense is from 1570s (in Latin from late 13c.).
例文
1. Stan Dean ，easily identifiable by his oddly-shaped hat，sat in a doorway.
スタン?ディーンは入り口に座っていて、彼の奇妙な帽子は一瞬にして彼を認識させた。
2.She was Dean of the Science faculty at Sophia University.
彼女は上智大学科学学部の院長です。
3.I 'll lay odds that Dean is at your office right now.
ディーンは今あなたのオフィスにいると思います。
4.He also began a running feud with Dean Acheson.
彼もエジソン院長と次々と争い始めた。
5.I 'mメイキングinquiries about the circumstances of Mary Dean 's murder.