The title of (Psalms 5:1) in the Authorized Version is rendered "To the chief musician upon Nehiloth ." It is most likely that nehiloth is the general term for perforated wind-instruments of all kinds, as neginoth denotes all manner of stringed instruments.
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Bibliography Information Smith, William, Dr. "Entry for 'Nehiloth'". "Smith's Bible Dictionary". <http://classic.studylight.org/dic/sbd/view.cgi?number=T3158>. 1901.