Possibly a blend ofGermanBank andEnglishbench, both ultimately fromProto-Germanic*bankiz(“raised surface, slope, bench”).Doublet ofbanko.
benko (accusative singularbenkon,pluralbenkoj,accusative pluralbenkojn)
Borrowed from Esperantobenko, Englishbench, Frenchbanc, GermanBank, Italianbanco, Spanishbanco, all ultimately fromProto-Germanic*bankiz. The initial vowele was chosen instead ofa so not to cause confusion withbanko(“bank”).
benko (pluralbenki)