Nearby words

  1. cushty,
  2. cushy,
  3. cusk,
  4. cusk-eel,
  5. cuso,
  6. cusp height,
  7. cuspal,
  8. cuspate,
  9. cusped,
  10. cuspid

Origin of cusp

First recorded in 1575–85, cusp is from the Latin word cuspis a point

Related formscusp·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cusp

British Dictionary definitions for cusp



any of the small elevations on the grinding or chewing surface of a tooth
any of the triangular flaps of a heart valve
a point or pointed end
Also called: spinode geometry a point at which two arcs of a curve intersect and at which the two tangents are coincident
architect a carving at the meeting place of two arcs
astronomy either of the points of a crescent moon or of a satellite or inferior planet in a similar phase
astrology any division between houses or signs of the zodiac

Word Origin for cusp

C16: from Latin cuspis point, pointed end

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for cusp



1580s, from Latin cuspis "point, spear, pointed end, head," of unknown origin. Astrological use is earliest.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for cusp




A pointed or rounded projection on the chewing surface of a tooth.
A triangular fold or flap of a heart valve.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.