- leading (n.1)
[leading 词源字典]
- "lead work; lead covering or frame of lead," mid-15c., from lead (n.1).[leading etymology, leading origin, 英语词源]
- leading (n.2)
- mid-13c., "a bringing by force," from present participle of lead (v.1). Meaning "direction, guidance" is from late 14c. As an adjective, "directing, guiding."