The word Quadrennialy is misspelled against Quadrennially, an adverb meaning "Once in four years."
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Quadrennially has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings quadrennia & y which should not be misspelled with single 'L'
Wrong Spelling: quadrennia-l-y
Correct Spelling: quadrennia-ll-y
Check more misspelled words of Quadrennially to spell it correct.