An Etymological Dictionary of Astronomy and Astrophysics

Relating to or having the form of an → ellipse. Same as → elliptical.

Etymology (EN): From Gk. elleiptikos “pertaining to an ellipse,” from elleipein “to fall short, leave out,” from en- “in” + leipein “to leave,” + → -ic.

Etymology (PE): Beyzigun, from beyzi, → ellipse,

• -gun, from
  gun “resembling; manner, fashion; color”
  (Mid.Pers. gônak “kind, species;” Av. gaona- “color”).