euphoria
/juːˈfɔːrɪə/noun
mass noun
- a feeling or state of intense excitement and happiness极度兴奋（或愉快）; 情绪高涨; 欣快：
in his euphoria, he had become convinced he could defeat them.
他一度兴奋, 深信自己可以击败他们。
词源
late 17th cent. （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'.