- outline (n.)
[outline 词源字典]
- 1660s, "lines by which a figure is delineated," from out + line (v.). Meaning "rough draft in words" is from 1759.[outline etymology, outline origin, 英语词源]
- outline (v.)
- 1790, "to draw in outline," from outline (n.). Meaning "to describe in general terms" is from 1855. Related: Outlined; outlining.