- jigsaw (n.)
[jigsaw 词源字典]
- also jig-saw, "vertical reciprocating saw," 1855, American English, from jig with its notion of "rapid up-and-down motion" + saw (n.1). Jigsaw puzzle first recorded 1906; originally one with pieces cut by a jigsaw.[jigsaw etymology, jigsaw origin, 英语词源]