Alfred James Hipkins and Kathleen Schlesinger, 1911 Encyclopædia Britannica, Volume 17… (1911)
“ As long as the strings were plucked by fingers or plectrum the large pear-shaped instrument may be identified as the archetype of the lute. When the bow, obtained from Persia, was applied to the instrument by the Arabs, a fresh family was formed, which was afterwards known in Europe as rebab and later rebec. The largest member of the ancient lute family—the bass lute or theorbo—has been identified with the barbiton. ”
