ego
ego \'e--(.)go- also 'eg-(.)o-\ n [NL, fr. L, I - more at I] 1: the self esp. as contrasted with another self or the world 2a: EGOTISM 2b: SELF-ESTEEM 3: the conscious part of the personality that is derived from the id throug h contacts with reality and that mediates the demands of id, superego, and external reality