Moon - Month - Mah - MaO.E. mona, from P.Gmc. *mænon- (cf. O.S., O.H.G. mano, O.Fris. mona, O.N. mani, Du. maan, Ger. Mond, Goth. mena "moon"), from PIE *me(n)ses- "moon, month" (cf. Skt. masah "moon, month;" Avestan ma, Pers. mah, Arm. mis "month;" Gk. mene "moon," men "month;" L. mensis "month;" O.C.S. meseci, Lith. menesis "moon, month;" O.Ir. mi, Welsh mis, Bret. miz "month"), probably from base *me- "to measure," in ref. to the moon's phases as the measure of time. In Gk., Italic, Celtic, Armenian the cognate words now mean only "month." Gk. selene is from selas "light, brightness (of heavenly bodies)." Extended 1665 to satellites of other planets. Kaynak: http://www.etymonline.com/index.php?term=moon
(Avesta: Sanskritçe'ye yakın Eski İran Dili)
