The Collaborative International Dictionary
Yestermorn \Yes"ter*morn`\, Yester-morning \Yes"ter-morn`ing\,
n.
The morning of yesterday.
--Coleridge.
Wiktionary
n. (context obsolete English) Yesterday morning.
Usage examples of "yestermorn".
But even worse, he loathed his berserk rage yestermorn when he had seen the half-decayed, eyeless bodies of his good friends lying on the battlefield like refuse.
He died yestermorn of the fever, and she must get to her family in Jorvik.
Eric: Two messengers since Yestermorn have gone hence, And ere long will the Prince Bring relief.
He swore to Bolthor yestermorn that time passed so slowly in this nunnery that he counted the hours by the drips of his candle.
I told Sharon Stone yestermorn when she complained about her busy schedule.
It is an unbelievable story, one I just learned about yestermorn, but I have a more important task to take care of now.