Noah Webster's Dictionary 1. (a.) Of or pertaining to the night, or to every night; happening or done by night, or every night; as, nightly shades; he kept nightly vigils. 2. (adv.) At night; every night.

Multi-Version Concordance Nightly (4 Occurrences) Psalms 88:1 A Song, a Psalm, by sons of Korah, to the Overseer, 'Concerning the Sickness of Afflictions.' -- An instruction, by Heman the Ezrahite. O Jehovah, God of my salvation, Daily I have cried, nightly before Thee, (YLT) Jeremiah 33:20 Thus said Jehovah: If ye do break My covenant of the day, And My covenant of the night, So that they are not daily and nightly in their season, (YLT) Jeremiah 33:25 Thus said Jehovah: If My covenant 'is' not daily and nightly, The statutes of heaven and earth I have not appointed -- (YLT) Lamentations 2:18 Cried hath their heart unto the Lord; O wall of the daughter of Zion, Cause to go down as a stream tears daily and nightly, Give not rest to thyself, Let not the daughter of thine eye stand still. (YLT)