An Etymological Dictionary of the German Language/Annotated/Bachbunge

by Friedrich Kluge

Bachbunge, feminine, ‘speedwell, brooklime' (Veronica beccabunga), from Middle High German bungo, Old High German bunge, ‘bulb'; allied to Old Icelandic bingr, ‘bolster,’ and more remotely with Sanscrit bahú, ‘dense,’ Greek παχύς?.