euphoria

 
Pronunciation: /juːˈfɔːrɪə/

noun

[mass noun]
  • a feeling or state of intense excitement and happiness: in his euphoria, he had become convinced he could defeat them

Origin:

late 17th century (denoting well-being produced in a sick person by the use of drugs): modern Latin, from Greek, from euphoros 'borne well, healthy', from eu 'well' + pherein 'to bear'