Yestreen (adverb)
yes-treen
During yesterday evening.
The yestr- part of yestreen is a shortened form of yesterday, which comes from Old English. The -een element is the same as that in Halloween; it’s short for even, an archaic word for “evening.” Yestreen was first recorded in English in the mid-14th century.
Example sentences
“They worked all through yestreen and fell into bed exhausted.”
