hesternal
Of or pertaining to yesterday.
archaic, literary
[A]t laſt, this happy fellow, on a high / Bed laid, and dawbed over with thick ointments, / Extends his rigid heels towards the door; but him / The heſternal Romans, with cover'd head, ſuſtained.
Where it comes from
From Latin hesternus (“of or pertaining to yesterday; yesterday’s”) + English -al (suffix forming adjectives).
Adapted from the Wiktionary entry hesternal (CC BY-SA 4.0).