by alteration & shortening from alack the day
1695, in the meaning defined above
The 'Oops' and 'Whoops' In 'Upsy-daisy'
Mistakes (and variant spellings) happen.
The Languid Story of 'Lackadaisical'
From "expression of woe" to "why bother?"
lackadaisy
lackaday
lacker
“Lackaday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lackaday. Accessed 3 Dec. 2024.
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