verb
effervesce
ef-er-VESS/ˌɛfərˈvɛs/
To release bubbles of gas.
The sparkling liquid effervesces as streams of bubbles rise through it.

Etymology
“Begin to boil” with “up, out from within” gives the image of liquid boiling up or over. Effervesce applies that bubbling image to gas escaping from a liquid.
More examples
- The tablet effervesces as it dissolves in water.
- The mixture began to effervesce when I added vinegar.
- Freshly poured soda keeps effervescing for a few minutes.
Forms
effervesce · effervesces · effervesced · effervescing
effervescence noun — The release of bubbles from a liquid.
effervescent adjective — Giving off small bubbles of gas.