egotism

From Latin ego (“I”) + -t- (perhaps modelled on or like it despotism, idiotism) + -ism.

egotism (usually uncountable, plural egotisms)

1. A tendency to talk excessively about oneself.
2. A belief that one is superior to or more important than others.
3. (countable) The result or product of being egoistic.
4. (nonstandard, by confusion of the similar words) Egoism (belief that behavior should be directed towards one's self-interest).

• pride, vanity, conceit, narcissism
• egocentrism, egoism

• alter-egotism
• egotist
• egotistic
• egotistical

• solipsism

• “egotism”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “egotism”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.

Borrowed from French égotisme.

egotism n (uncountable)

1. egotism