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Meaning of yestreen

yes•treen

Pronunciation: (ye-strēn'), [key]
— Scot. and North Eng. Scot. and North Eng.
—n.
  1. yesterday evening; last evening.
—adv.
  1. during yesterday evening.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.