An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 1 Search : oct-
octa-, oct-
  هشت-، اکتا-، اکت-   
hašt-, octa-, oct-

Fr.: octa-, octo-, oct-   

A prefix meaning eight.

From L. octo, Gk. okto, cognate with Pers. hašt, as below. Skt. asta, Goth. ahtau, O.E. eahta (see eight).

Hašt "eight," from Mid.Pers. hašt, O.Pers.*aštahva- "eighth;" Av. ašta; cf. Skt. astā; Ossetic ast; (Buddhist) Sogdian 'št; Gk. okto, L. octo (Fr. huit; Sp. ocho); P.Gmc. *akhto(u) (O.E. eahta, æhta, E. eight, O.N. atta, Ger. acht, Goth. ahtau); PIE base *oktô(u).
Octa-, oct, loaned Gk. forms, as above.