effervescence/ˌɛfə(ɹ)ˈvɛsəns/EtymologyBorrowed from French effervescence. By surface analysis, ef- + Latin ferv- + -escence.nounThe escape of gas from solution in a liquid, especially the escape of carbon dioxide from a carbonated drink.Vivacity.Foment.“We are in the habit of calling those bodies of men anarchal which are in a state of effervescence.”