An Etymological Dictionary of the German Language/Bankert

by Friedrich Kluge

Bankert, earlier Bankart, Bankhart, m., ‘bastard, bantling,’ from MidHG. banchart, m., ‘illegitimate child,’ lit. ‘a child begotten upon the bench’; a compound of Bank. The second part is -hart, appearing in proper names as Gebhart, Reinhart, and is formed by assimilation to Bastard (older Bastart, also written Basthart).