brummeln

== German == === Etymology === brummen +‎ -eln === Pronunciation === === Verb === brummeln (weak, third-person singular present brummelt, past tense brummelte, past participle gebrummelt, auxiliary haben) to hum quietly to mutter, to mumble ==== Conjugation ==== === Further reading === “brummeln” in Duden online “brummeln” in Digitales Wörterbuch der deutschen Sprache