de·lir·i·um 
/dɪˈlirijəm/ noun
plural de·lir·iums /dɪˈlirijəm/ noun 1 : a mental state in which you are confused and not able to think or speak clearly usually because of fever or some other illness [noncount] ▪ In her delirium, nothing she said made any sense. ▪ a period of delirium [count] ▪ drug deliriums 2 [noncount] : a state of wild excitement and great happiness
▪ The team's victory sent fans into (a state of) delirium.
▪ The team's victory sent fans into (a state of) delirium.
