An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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diurnal
  روزانه  
ruzâné (#)
Fr.: diurne  

Having a period of, occurring in, or related to a → day.

Etymology (EN): L.L. diurnalis, from V.L. diurnum “day” (Fr. jour), from L. diurnus “daily,” from dies “day” + -urnus, an adj. suffix denoting time. Dies “day” from PIE base *dyeu- “to shine;”
cf. Gk. delos “clear;” L. deus; Skt. deva “god;”
Mod.Pers. div “devil, demon;” O.Pers. daiva- “evil god, demon;” Av. daēva- “evil spirit, false god;” Gk. Zeus “supreme god.”

Etymology (PE): Ruzâné, from ruz→ day + -âné a suffix forming adverbs and adjectives.