egotism

/IY1 G AH0 T IH0 Z AH0 M/
noun
  1. 1

    A tendency to talk excessively about oneself.

  2. 2

    A belief that one is superior to or more important than others.

  3. 3

    The result or product of being egoistic.

  4. 4

    (by confusion of the similar words) Egoism.

Source: https://en.wiktionary.org/wiki/egotism