Nehiloth
Only in the title of Ps. 5. It is probably derived from a root meaning "to bore," "perforate," and hence denotes perforated wind instruments of all kinds. The psalm may be thus regarded as addressed to the conductor of the temple choir which played on flutes and such-like instruments.
M. G. Easton, Illustrated Bible Dictionary, 3rd edition (1897). Public domain; text from the Christian Classics Ethereal Library. A nineteenth-century Protestant reference: its dates, archaeology and judgements reflect the scholarship of its time and are not Imago Dei's editorial position.