Effervesce
Pronunciation : Ef`fer*vesce"
Part of Speech : v.
Etymology : [L. effervescere; ex + fervescere to begin boiling, incho., fr. fervere to boil. See Fervent.]
Definition : 1. To be in a state of natural ebullition; to bubble and hiss, as fermenting liquors, or any fluid, when some part escapes in a gaseous form.
2. To exhibit, in lively natural expression, feelings that can not be repressed or concealed; as, to effervesce with joy or merriment.
i. [imp. & p. p. Effervesced; p. pr. & vb. n. Effervescing.]
Source : Webster's Unabridged Dictionary, 1913