An Etymological Dictionary of Astronomy and Astrophysics

1. Physics: The state of a physical system at a given time. Also called → physical condition.
   
2. Math: A premise, statement, or restriction upon which a mathematical result or consequence depends. → initial conditions; → boundary conditions.

Etymology (EN): From O.Fr. condition, from L. condicionem (nom. condicio) “agreement, situation,” from condicere “to speak with, talk together,” from → com- “together” + dicere “to speak,” from PIE *deik- “to point out;” cf. Av. daēs- “to show; assign; make known,” Skt. dis- “to show, point toward,” disati “shows,” Gk. deiknunai “to show,” O.H.G. zeigon, Ger. zeigen “to show,” E. token “indication, sign.”

Etymology (PE): Butâr, from Mid.Pers. but past tense stem of butan Mod.Pers. budan “to be, become,” → exist,

• -âr noun suffix (as in raftâr, jostâr, goftâr, kerdâr).