nightlong

== English == === Pronunciation === === Etymology 1 === From Middle English *nihtlong, from Old English nihtlang (“lasting through the night, night-long, a night in length”), equivalent to night +‎ -long. ==== Adjective ==== nightlong (not comparable) Lasting a night (i.e. the duration of one night); lasting all night. === Etymology 2 === From Middle English nihtlonge, nihtlonges, from Old English nihtlanges (“for the night”), equivalent to night +‎ -long. ==== Adverb ==== nightlong (not comparable) Through the night.