The Collaborative International Dictionary
Yestreen \Yes`treen"\, n. Yester-evening; yesternight; last night. [R. or Scot.]
Yestreen I did not know
How largely I could live.
--Bp. Coxe.
Wiktionary
n. (context chiefly archaic poetic or Scottish English) The night before
Usage examples of "yestreen".
He has sworn falsely against the innocent, and yestreen at Kirk Aller he prevailed.
London yestreen I fell upon some person to whom I had never been introduced and committed mayhem upon his person.
He works in the Quarries, ye ken, and a month yestreen he got a muckle stane on his leg that brak it like a pipe stapple.
Isentrude and Guta, The hussies, came here begging but yestreen, Vowed they were starving.
He wasn't in the best temper for many reasons, not the least of them that he'd used magic earlier, first on a brief visit to Security before she'd wakened, reminding them that they saw Chloe Zanders leave yestreen, and later when she'd tried to escape, a reflexive action, without thought.