from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To heave, as the waves of the sea; swell.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To swell or heave like a wave of the sea.
from The Century Dictionary and Cyclopedia
- To heave, as the waves of the sea; swell.
From em- + billow. (Wiktionary)