avatar vs ousia

avatar

noun
  • The embodiment of an idea or concept; an instantiation, especially a personification or incarnation. 

  • An incarnation of a deity, particularly Vishnu. 

  • A complex and dynamic digital representation of a person or being in the form of a digital model, used online as a simulation or emulation of a person, or as a person's online alter ego, in a virtual world, virtual chat room, or metaverse. 

  • A simple and static or nearly static digital representation of a person or being in the form of a small digital object, used online as a simulacrum or token of a person or that person's online alter ego, in any digital environment but especially in non-virtual, non-metaversal ones. 

ousia

noun
  • Essence, being. 

  • The essential nature or ‘substance’ of God, often as contrasted to the ‘energies’ (external actions and influences) through which he is manifest. 

How often have the words avatar and ousia occurred in a corpus of books? (source: Google Ngram Viewer )