narcissism

noun

1. (uncountable, usually)A self-centered personality trait in which the person is infatuated with their own characteristics and image that are idealized while others and their differences are devalued in comparison (unless sameness kindles spectacular affinity that forms a rerouting of one's self-love, i.e. the person can see themselves in the other).

   “Although the researchers found that, on average, narcissism gradually declined as people aged, “the results show that this decline is not as large as one might hope,” said Ulrich Orth, the lead author of the paper and a professor of developmental psychology at the University of Bern in Switzerland.”

2. (uncountable, usually)Sexual desire for one's own body.