What does Boxing Day have to do with boxing?
1905, from German Narzissismus, coined 1899 (in "Die sexuellen Perversitäten"), by German psychiatrist Paul Näcke (1851-1913), on a comparison suggested 1898 by Havelock Ellis, from Greek Narkissos, name of a beautiful youth in mythology (Ovid, "Metamorphoses," iii.370) who fell in love with his own reflection in a spring and was turned to the flower narcissus (q.v.). Coleridge used the word in a letter from 1822.
But already Krishna, enamoured of himself, had resolved to experience lust for his own self; he manifested his own Nature in the cow-herd girls and enjoyed them." [Karapatri, "Lingopasana-rahasya," Siddhanta, II, 1941-2]Sometimes erroneously as narcism.
narcissism nar·cis·sism (när'sĭ-sĭz'əm) or nar·cism (när'sĭz'əm)
Excessive love or admiration of oneself.
Erotic pleasure derived from contemplation or admiration of one's own body or self, especially as a fixation on or a regression to an infantile stage of development.
A consuming self-absorption or self-love; a type of egotism. Narcissists constantly assess their appearance, desires, feelings, and abilities.