EFFERVESCED
Verb
effervesced
simple past tense and past participle of effervesce
Source: Wiktionary
EFFERVESCE
Ef`fer*vesce", v. i. [imp. & p. p. Effervesced; p. pr. & vb. n.
Effervescing.] Etym: [L. effervescere; ex + fervescere to begin
boiling, incho., fr. fervere to boil. See Fervent.]
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.
Source: Webster’s Unabridged Dictionary 1913 Edition