- last night.
- during last night.
Origin of yesternight
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for yesternight
One of these hours my dear Clarinda blest me with yesternight.
Could you think that I intended to hurt you by any thing I said yesternight?
Yesternight I was happy—happiness "that the world cannot give."
I taxed my memory, and the events of yesternight recurred to me.Bardelys the Magnificent
But yesternight that ribald mocked him with his lack of scars.The Sea-Hawk