- 1826, Mary Shelley, The Last Man:
- "That, Clara," I said, "is the gate, that the street which yestermorn your father rode up."
- 1900, Rudyard Kipling, The Seven Seas:
- By the wisdom of the centuries I speak-- To the tune of yestermorn I set the truth-- I, the joy of life unquestioned--I, the Greek-- I, the everlasting Wonder Song of Youth!
yester- + morn
Variant of yestermorning
Archaic (on) the morning of yesterday