köken: Inherited from Old Czech chmýřie, from earlier mcheřec (“fluff, dust flake”), from Proto-Slavic *mъxъ (“moss”). By surface analysis, chmýr + -í.
köken: From búb + -ita (a rare diminutive suffix). First attested in 1647. Other examples for the ending are bokréta (“bouquet”) and pocséta (“puddle”).