köken: From Old Norse brantr, (West Norse brattr), of uncertain origin, but possibly from Proto-Indo-European *bʰren- (“project”), related to Old English brant (“steep”), Latvian bruôds (“roof ridge”). Cognate with Faroese and Icelandic brattur, Danish brat, Norwegian Bokmål bratt, and Old English brant, bront (English brant, brent, Scots brent).
köken: Probably from Latin caerula (“pertaining to the sea”) (likely through an initial early Romanian form *cerure or *cerură, which underwent changes due to dissimilation and other processes, perhaps derhotacization; see some of the above dialectal or archaic alternative forms such as gerure, which were more conservative in pronunciation); some variants possibly derive from the form caerulea. Another…
köken: From Proto-Slavic *urъva, likely originally a resultant noun from у- (u-) + ръ́вам (rǎ́vam, “to bite, to rupture”). Akin to Polish urwisko (“cliff”), Ukrainian у́рвище (úrvyšče, “cliff”).