Where does “bule” come from?
bule (Middle Dutch) comes from Old Dutch būla, from Proto-Germanic būlijǭ, from Proto-Germanic būlǭ, from Proto-Indo-European bew- — "low-pitch humming noise".
bule (Middle Dutch) comes from Old Dutch būla, from Proto-Germanic būlijǭ, from Proto-Germanic būlǭ, from Proto-Indo-European bew- — "low-pitch humming noise".