- arc (v.)
[arc 词源字典]
- 1893, in the electrical sense, from arc (n.). Meaning "to move in an arc" attested by 1954. Related: Arced; arcing.[arc etymology, arc origin, 英语词源]
- archdeacon (n.)
- Old English arcediacon, from Church Latin archidiaconus, from Ecclesiastical Greek arkhidiakonon "chief deacon;" see arch- + deacon.