daystar
The planet Venus as the morning star.
literary
Near-synonyms: Vesper, Hesperus, evening star, Venus
The Sun.
I only go outdoors at night, away from the daystar's burning glare.
Where it comes from
From Middle English daysterre, from Old English dæġsteorra, equivalent to day + star. Cognate with Scots daystern (“morningstar; daystar”).
Adapted from the Wiktionary entry daystar (CC BY-SA 4.0).