The Grammarphobia Blog: Publicly vs. publically
https://www.grammarphobia.com/blog/2015/08/publicly-publically.html
WebAug 28, 2015 · As Merriam-Webster’s Dictionary of English Usage explains, “ Publically is an occasionally used variant spelling of publicly. It is either based on the obsolete publical or, more likely, simply on analogy with many other – ically adverbs.”
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