type of green gemstone, mid-14c. (mid-13c. in Anglo-Latin), from Old French peridot, peritot (early 13c., Modern French péridot) and Medieval Latin peridotus, words of unknown origin.
perianth
pericarditis
pericardium
Pericles
pericope
peridot
perigee
perihelion
peril
perilous
perimeter
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