Original cause synonyms

What is another word for Original cause?

• root

  primary cause, prime cause
• ultimate cause

  primary cause, prime cause
• primary cause

  ultimate cause
• prime cause
• first cause

  prime cause
• origin
• source
• wellspring

  source
• background

  source
• genesis

  source
• nature

  source
• point of origin

  source
• primary source
• origin of coordinates