1919, in the meaning defined above
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From the Editors at Merriam-Webster
13 Unusually Long English Words
Pulchritudinous and many more
Cite this Entry
“Polyphiloprogenitive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyphiloprogenitive. Accessed 31 Jul. 2021.
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