köken: Inherited from Middle High German vackel, from Old High German faccala, fackala, fackila, fackula, fackla, from Proto-West Germanic *fakkulā (“torch”).
köken: Diminutive of an unattested Old Italian *fiacca, from an older *facchia (with metathesis of /j/), from Latin facula. Effectively a doublet of facola, which was borrowed from Latin.
köken: Inherited from Middle Dutch vackel, from Old Dutch *fakla, *fackela, from Latin facula, diminutive of fax (“torch”). The modern f- is due to either relatinisation or the influence of a cognate, German Fackel.
köken: Inherited from Vulgar Latin *facla, from a contraction of Latin facula (“little torch”), from fax (“torch”). Doublet of făclie and faclă (borrowings through Slavic and Greek intermediates), and flacără (from a Vulgar Latin variant form).
/takimat͡su/ → /taĩmat͡su/ → /taimat͡su/ Shift by イ音便 (i onbin, “i sound shift”) from takimatsu, itself from 焚き (taki, “burning”, stem or continuative form of verb 焚く (taku), "to burn") + 松 (matsu, “pine tree”). Compare the development of 続松 (tsugimatsu → tsuimatsu) of the same meaning. Orthographic borrowing from Chinese 松明 (sōngmíng).