The word HurDagh refers to any of these stringed instruments, of which there are several different types, the most commonly found being the relatively small Supghew. The midsize leSpal is fairly widely used, while the large tIngDagh is rarely heard except in conjunction with the performance of an opera. (KGT p. 76)
A HurDagh is generally not played with a bow, but there is another kind of stringed instrument that is plucked, strummed, or bowed. It's called a ngItHel, so that's probably the closest to a violin. (They used one of these in the production of the opera 'u'.) The word for the "bow" (a stick strung with strands of some kind) that's used with this instrument is simply ngItHel naQ "ngItHel stick," though a slang term often used is yan, literally "sword." (Maltz remarked on how this was similar to how some Humans refer to a guitar as an ax.) (qepHom 2019, p. 15)