I. adverb Etymology: Middle English, from Old English gystran niht, from giestran yesterday + niht night Date: before 12th century on the night last past, II. noun Date: 1513 the night last past
YESTERNIGHT
Meaning of YESTERNIGHT in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012