nightly
adj.adj. happening or done every night.
adj. occurring, appearing, or done every night; relating to the night.
The hotel offers a nightly cleaning service.
The nightly news broadcast provides a summary of the day's most important events at six o'clock.
The actor's nightly performance in the West End production earned him critical acclaim and several prestigious awards.
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”).
From Middle English nyghtly, neghtly, from Old English *nihtlīċe (“nightly”), equivalent to night + -ly.
Typically used attributively before a noun to describe a recurring event or service.