Dutch bulderen

← Middle Dutch bulderen (inherited)

← Middle Dutch boldren (mention)

← Proto-Indo-European *bʰel- (root)

← Proto-Indo-European *bʰel- (derived)

← Old Dutch *bulron (inherited)

→ German ballern (mention)

→ Dutch roepen (link)

→ Dutch bolderwagen (mention)

→ Swedish bullra (cognate)