a burok és búra ugyanaz a gyök.

COVER

Sakha бүрүй byɾyj

LID

Kalmyk бүркәсн pyrkæsɛn

 root *wer- (4) "to cover."

Sanskrit vatah "enclosure," Old Persian *pari-varaka "protective;" Old Church Slavonic vora "sealed, closed," vreti "shut;" Old Irish feronn "field," properly "enclosed land;" Old English wer "dam, fence, enclosure,"