1749, from Latin ebullientem (nominative ebulliens) "a boiling, a bursting forth, overflow," present participle of ebullire "to boil over" (see ebullient). Related: Ebulliency (1670s), ebullition (c. 1400).
Entries linking to ebullience
ebullient adj.
1590s, "boiling," from Latin ebullientem (nominative ebulliens), present participle of ebullire "to boil over," literally or figuratively, from ex "out, out of" (see ex-) + bullire "to bubble" (see boil (v.)). Figurative sense of "enthusiastic" is first recorded 1660s.