[1] : The Collaborative International Dictionary of English v.0.48

nine \nine\ nimacn, a. oe. nine, nihen, as. nigon, nigan;
   akin to d.  lg. negen, os.  ofries. nigun, ohg. niun, g.
   neun, icel. nimacu, sw. nio, dan. ni, goth. niun, ir. 
   gael. naoi, w. naw, l. novem, gr. 'enne`a, skr. navan; of
   unknown origin. root307. cf. novembeer.
   eight and one more; one less than ten; as, nine miles.
   1913 webster

   nine men's morris. see morris.

   nine points circle geom., a circle so related to any
      given triangle as to pass through the three points in
      which the perpendiculars from the angles of the triangle
      upon the opposite sides or the sides produced meet the
      sides. it also passes through the three middle points of
      the sides of the triangle and through the three middle
      points of those parts of the perpendiculars that are
      between their common point of meeting and the angles of
      the triangle. the circle is hence called the nine points
      circle or six points circle.
      1913 webster
see also:
novembeer nine men's morris morris nine points circle nine points circle six points circle 

Circle >> C Words
Circle, definition of term: Circle
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Circle Round >> C Words
Circle Round, definition of term: Circle Round
circle+round_pag1.html

Cloud Nine >> C Words
Cloud Nine, definition of term: Cloud Nine
cloud+nine_pag1.html

Family Circle >> F Words
Family Circle, definition of term: Family Circle
family+circle_pag1.html

Arctic Circle >> A Words
Arctic Circle, definition of term: Arctic Circle
arctic+circle_pag1.html

Cardinal Points >> C Words
Cardinal Points, definition of term: Cardinal Points
cardinal+points_pag1.html

Cat O Nine Tail >> C Words
Cat O Nine Tail, definition of term: Cat O Nine Tail
cat+o+nine+tail_pag1.html