Origin of parallelepiped
Greek parallēlepipedon, from parallēlos + epipedon plane surface, from neuter of epipedos flat, from epi- epi- + pedon ground; akin to Latin ped-, pes foot — more at foot
First Known Use: 1570
Seen and Heard
What made you want to look up parallelepiped? Please tell us where you read or heard it (including the quote, if possible).