n. The night before; yesterday evening; yesternight; last night.
the GNU version of the Collaborative International Dictionary of English
n. Yester-evening; yesternight; last night.
The Century Dictionary and Cyclopedia
Last evening; last night; yesternight.
Word Usage
"In troth is he, Monkbarns; he was awa this morning by four o'clock, when the sea was working like barm wi' yestreen's wind, and our bit coble dancing in't like a cork."