from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To breathe or puff out.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To breathe or puff out.
from The Century Dictionary and Cyclopedia
- To breathe or puff out; emit, as steam or vapor.
Latin effumare to emit smoke; ex + fumare to smoke, from fumus smoke. (Wiktionary)