Definition of "suffixal" []

• That may be modified by the addition of a suffix (adjective)
• Taking the role of a suffix (adjective)

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• "A: “Who all,” like “you all,” is a common redundant suffixal colloquialism and may be used without disadvantage in all but the most snobbish circles, even though it is not standard English."
• "• Also, the m : n ratio is 1 to 6 in onset but 8 to 7 in codas, so there is probably a suffixal -em too."