14th century, in the meaning defined above
'Utmost' vs 'Upmost': Utter Confusion...
What does "ut" mean anyway? We explain.
upmarket
upmost
upness
“Upmost.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upmost. Accessed 5 Oct. 2024.
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