A stringed instrument of music. This word is found in the titles of Ps. 8, 81, 84. In these places the LXX. render the word by “on the wine-fats.” The Targum explains by “on the harp which David brought from Gath.” It is the only stringed instrument named in the titles of the Psalms.
Smith's Bible Dictionary 1863
a musical instrument, by some supposed to have been used by the people of Gath, and by others to have been employed at the festivities of the vintage. Psal 8,81,84.