An Etymological Dictionary of Astronomy and Astrophysics

To confine or keep within limits.
→ restricted three-body problem.

Etymology (EN): From L. restrictus, p.p. of restringere “to restrict, bind fast, restrain,” from → re- “back” + stringere “to draw tight.”

Etymology (PE): Forudâštan “to keep down, hold under control, bring to a halt” (Steingass, Dehxodâ), from foru- “down, downward,” → de-,

• dâšt past stem of dâštan
  “to have, to possess” (Mid.Pers. dâštan; O.Pers./Av. root dar- “to hold, keep back, maintain, keep in mind;” cf. Skt. dhr-, dharma- “law;”
  Gk. thronos “elevated seat, throne;” L. firmus “firm, stable;” Lith. daryti “to make;” PIE *dher- “to hold, support”)
• -an infinitive suffix.
  Forudâridan, from foru- + dâr present stem of dâštan + -idan