Webster's Revised Unabridged Dictionary · 1913

Caption

Caption , noun

[Latin captio, from caper to take. In senses 3 and 4, perhaps confounded in meaning with Latin caput a head. See Capacious.]

1.
A caviling; a sophism. [Obsolete]
This doctrine is for caption and contradiction. — Bacon
2.
The act of taking or arresting a person by judicial process. [Rare] — Bouvier
3.
(Law) That part of a legal instrument, as a commission, indictment, etc., which shows where, when, and by what authority, it was taken, found, or executed. — Bouvier
4.
The heading of a chapter, section, or page. [United States]