An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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refract
  شکستن  
šekastan (#)
Fr.: réfracter  

To alter the course of a wave of light, sound, etc. when the wave crosses the boundary between this medium and another through which it travels at a different speed.

Etymology (EN): From L. refractus, p.p. of refringere, → refraction.

Etymology (PE): Verb of šekast, → refraction.