arpeggiate

ar·peg·gi·ate

 (är-pĕj′ē-āt′)
tr.v. ar·peg·gi·at·ed, ar·peg·gi·at·ing, ar·peg·gi·ates
1. To play or sing (a chord) in arpeggio.
2. To represent (the tones of a chord) as separate notes, as on a staff.

ar·peg′gi·a′tor n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

arpeggiate

(ɑːˈpɛdʒɪˌeɪt)
vb (tr)
to play an arpeggioto represent (a chord) as separate notes on a score
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
If possible, having the student gently roll or arpeggiate the large chord can provide an adequate solution to extreme skips in many cases.
What he meant was that, when the record was over, he'd go to the piano with the score, read through the music and find the chords one at a time, play them in every key, invert them, arpeggiate them, let his musical imagination suggest to him some of the moments, in some of the innumerable tunes he knew, that these chords might best suit, and generally take them in in every way he could till they were his chords, part of his repertoire of understanding and technique and blue sounds, to be used in his own performance.
And while it is a simple desire for euphony that makes him arpeggiate the second right-hand chord in bar 3 of Op.