self-essence

• a word derived from essence.
  essence

  noun

  the basic, real, and invariable nature of a thing or its significant individual feature or features.

Related Words

• aspect
• basis
• bottom line
• character
• core
• crux
• element
• lifeblood
• meaning
• nature
• principle
• quality
• reality
• root
• soul
• spirit
• structure
• substance