from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Music In a simple or plain manner. Used chiefly as a direction.
from The Century Dictionary and Cyclopedia
- In music, simple; unaffected: noting passages to be rendered without embellishments or rhythmic liberties.
Italian, from Latin simplex, simplic-, simple; see sem-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)