An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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union
  یکایش  
yekâyeš
Fr.: union  

General: The act of uniting two or more things.
A number of persons, organizations, states, etc., joined or associated together for some common purpose, e.g. → International Astronomical Union (IAU).
Math.: A set containing all the elements of two or more sets being combined.
It is represented by ∪.

Etymology (EN): M.E. from O.Fr. union from L.L. unionem (nominative unio) “oneness, unity,” from unus, → one, cognate with Pers. yek, as below.

Etymology (PE): Yekâyeš, from yek, → one,

  • -ây- epenthetic vowel, + -eš verbal noun suffix, → -tion.