from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To play or sing (a chord) in arpeggio.
- transitive v. To represent (the tones of a chord) as separate notes, as on a staff.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To play (a chord) as an arpeggio.
- v. To represent separately on a score.
From arpeggio + -ate. (Wiktionary)