American Tract Society Bible Dictionary
The word Gittish signifies belonging to Gath. It probably denotes either a musical instrument or a kind of music derived from Gath, where David sojourned for a time during the persecution of Saul, 1 Samuel 27:1-7 . The word Gath also signifies in Hebrew a winepress. Hence not a few have supposed that it denotes either an instrument or a melody used in the vintage. It is prefixed to Psalm 8:1-9; 81:1 - 16; 84:1-12 , all of which requires an animated strain of music.
These files are public domain and are a derivative of the topics are from American Tract Society Bible Dictionary published in 1859.
Rand, W. W. Entry for 'Gittith'. American Tract Society Bible Dictionary. https://www.studylight.org/dictionaries/eng/ats/g/gittith.html. 1859.