nightly

What it means

1. not comparableHappening or appearing in the night; night-time; nocturnal.

   nightly dews

   1 more example

   A cobweb spread above a blossom Is sufficient to protect It from nightly chill.

   1871, John Tyndall, Fragments of Science: A Series of Detached Essays, Lectures, and Reviews

2. not comparablePerforming, occurring, or taking place every night.

   The dog demanded to go out for his nightly walk.

3. not comparableUsed in the night.

In a sentence

nightly dews

Where it comes from

1. Old Englishnihtlīċ
2. Middle Englishnyȝtly
3. Englishnightly

From Middle English nyȝtly, nihtlich, nihtlic, from Old English nihtlīċ, nihtelīċ (“nocturnal, nightly, of the night, at night”), equivalent to night + -ly. Cognate with Scots nichtlie (“nightly”), West Frisian nachtlik (“nightly, nocturnal”), Dutch nachtelijk (“nightly, nocturnal”), German nächtlich (“nocturnal, nightly”), Danish natlig (“nightly”), Swedish nattlig (“nightly, nocturnal”).