- parallelogram (n.)
[parallelogram 词源字典]
- 1560s, from Middle French parallélogramme (1550s) and directly from Late Latin parallelogrammum, from Greek parallelogrammon noun use of neuter adjective meaning "bounded by parallel lines," from parallelos (see parallel) + stem of graphein "to write" (see -graphy).[parallelogram etymology, parallelogram origin, 英语词源]