frustum (n.)

"remaining piece after a part has been cut off," 1650s, in mathematics, from Latin frustum "piece broken off," from PIE *bhrus-to-, from root *bhreu- "to cut, break up" (see bruise (v.)).

Entries linking to frustum

bruise (v.)

Old English brysan "to crush, pound, injure by a blow which discolors the skin," from Proto-Germanic *brusjan, from PIE root *bhreu- "to smash, cut, break up" (source also of Old Irish bronnaim "I wrong, I hurt;" Breton brezel "war," Vulgar Latin *brisare "to break"). Merged by 17c. with Anglo-French bruiser "to break, smash," from Old French bruisier "to break, shatter," perhaps from Gaulish *brus-, from the same PIE root. Of fruits from early 14c. Intransitive sense "become bruised" is by 1912. Related: Bruised; bruising.

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Definitions of frustum

frustum (n.)

a truncated cone or pyramid; the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed;

From wordnet.princeton.edu

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