Decan

根据古英语词典：

decanon, es;

decan

m. One who has charge of ten monks:--Fram decane sí boren a decano portetur, Angl. xiii. 414, 701: 433, 980. Þurh decanonas per decanos, R. Ben. 125, 8. Cf. teóþung-ealdor. decan