l]
| a bowed musical instrument, differing from the violin in having deeper ribs, sloping shoulders, a greater number of strings, usually six, and frets: common in the 16th and 17th centuries in various sizes from the treble viol to the bass viol. |

vi·ol (vī'əl) n.
[Alteration of Middle English viel, from Old French viole, vielle, from Old Provençal viola; see viola1.] |
Viol
Heb. nebel (Isa. 5:12, R.V., "lute;" 14:11), a musical instrument, usually rendered "psaltery" (q.v.)