An Etymological Dictionary of Astronomy and Astrophysics

Prefix denoting “other, different.”

Etymology (EN): From Gk. heteros “the other (of two), another, different.”

Etymology (PE): Degar “another, other;” from Mid.Pers. dit, ditikar “the other, the second;” O.Pers. duvitiya- “second,” Av. daibitya-, bitya- “second;” Skt. dvitiya- “second,” PIE *duitiio- “second.”