A four-sided plane figure with opposite sides parallel.
[Late Latin parallēlogrammum, from Greek parallēlogrammon, from neuter sing. of parallēlogrammos, bounded by parallel lines : parallēlos, parallel; see PARALLEL + grammē, line; see gerbh- in the Appendix of Indo-European roots.]
(click for a larger image)parallelogram
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Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
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