köken: Inherited from Middle Persian [Book Pahlavi needed] (bwt' /but/, “Buddha, idol”), ultimately from Sanskrit बुद्ध (buddha). In the earliest New Persian sources of the ninth century, the word already has the extended meaning of “beautiful person; the beloved” (whom one worships instead of God). Doublet of بد (bud /bod, “Buddha”).
aile: بتخانه, بتشکن, بتپرست, بتپرستی, بتکده
چو آگه شدند از نکو دین اوی گرفتند آن راه و آیین اوی بتان از سر کوه میسوختند بجای بت آذر برافروختند
ما را جگر بتیر فراق تو خسته گشت ای صبر بر فراق بتان نیک جوشنی
köken: First attested in the Seokbo sangjeol (釋譜詳節 / 석보상절), 1447, as Middle Korean 부텨 (Yale: Pwùthyè), from Late Old Korean 佛體 (*PWUthye?), from Proto-Koreanic *Pwutukye, which was also loaned into Manchu ᡶᡠᠴᡳᡥᡳ (fucihi, “Buddha”) and Japanese 仏(ほとけ) (hotoke, “Buddha”) when Koreans spread Buddhism to those peoples. See the Proto-Korean entry for more. The first two syllables are ultimately from Sanskrit…