brumma

brumma (present brummar, preterite brummade, supine brummat, imperative brumma)

1. to make a deep, humming or growling sound (of for example a bear, an engine, or a fan)
2. to sing monotonously and out of tune (in a low voice)

A deep, "thick," slowly oscillating humming sound. "Growl" is included as a translation as describing a bear as humming or droning sounds off, and "brumma" is often used for bears.

• brumsnurra (“bullroarer”)

• brum
• brummare

• björn (“bear”)

• brumma in Svensk ordbok (SO)
• brumma in Svenska Akademiens ordbok (SAOB)