The word is possibly of Celtic origin (Welsh crwth) and a doublet of the archaic crowd, or crowth, a fiddle.
The instrument is well known to this day in Wales as the crwth.
The modern Welsh “crwth” is not a harp but a “rotta” (see Crowd).
A crwth, an antiquated Welsh instrument of the fiddle class.
The crwth presents still more troublesome questions, which we must admit are still less hopeful of solution.
This instrument became the crwth, and there was no further development.
The earliest representation of the crwth yet discovered dates from the Carolingian period.
The second class of musical bards was composed of the players upon the crwth, of six strings.
They make use of three instruments, the harp, the pipe, and the crwth or crowd (chorus).
The rebec was not known in Arabia until nearly two centuries after we find the crwth mentioned by Venance Fortunatus.