- encyclical (adj.)
[encyclical 词源字典]
- in reference to ecclesiastical letters meant for wide circulation (for example, a letter sent by a pope to all bishops), 1640s, from Late Latin encyclicus, from Latin encyclius, from Greek enkyklios "in a circle, circular" (see encyclopedia). As a noun, from 1837.[encyclical etymology, encyclical origin, 英语词源]