Selbstbewußtsein, Selbstbewusstsein, consciência de si, autoconciencia, self-consciousness

VIDE: (Selbstbewußtsein->http://hyperlexikon.hyperlogos.info/modules/lexikon/search.php?option=1&term=Selbstbewußtsein)

What else could be the meaning – if anybody has ever seriously thought about this – of the word sein (being) in the (German) words Bewußtsein (“consciousness”; literally: “being conscious”) and Selbstbewußtsein (“self-consciousness”) if it did not name the existential essence of that which is insofar as it exists? (GA9:204; GA9EN)