birr¹ /bûr or bir/ (esp Scot and US)

1. Impetus, force, vigour
2. A violent push (Scot)
3. Emphasis, stress in speaking
4. Any sharp whirring sound

To whirr

• sacrilegiously
• sacrilegiousness
• sacrilegist
• sacrilegists
• sacring
• sacring bell
• sacring bells
• sacrings
• sacrist
• sacristan
• sacristans
• sacristies
• sacrists
• sacristy
• sacro-
• sacrococcygeal
• sacrocostal
• sacroiliac
• sacroiliacs
• sacroiliitis
• sacroiliitises
• sacrosanct
• sacrosanctities
• sacrosanctity
• sacrosanctness