- footnote (n.)
[footnote 词源字典]
- also foot-note, 1841, from foot (n.) "lower end of a document" (1660s) + note (n.). So called from its original position at the foot of a page. Also sometimes formerly bottom note. As a verb, from 1864. Related: Footnoted; footnoting.[footnote etymology, footnote origin, 英语词源]