from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Music Moderately soft. Used chiefly as a direction.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. moderately soft
- adv. moderately soft
Italian : mezzo, half + piano, soft.(American Heritage® Dictionary of the English Language, Fourth Edition)
Italian mezzo ("half") + piano ("soft, quiet") (Wiktionary)