Wiktionary
arpeggiate
vb. (context music transitive English) To play (a chord) as an arpeggio.
Usage examples of "arpeggiate".
Cygnans did, of course, but he did the best he could, first arpeggiating it, then alternating it in a rapid tremolo.
He had to substitute an arpeggiated chord for the triad, then make do with just the top note of the double glissando.
The young man seats himself at the Clavier, and arpeggiates a few major chords.