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definitions

-aire

a suffix that forms nouns denoting a person characterized by or occupied with that named by the stem, occurring in loanwords from French: concessionaire; doctrinaire; legionnaire; millionaire.

Origin of -aire

< French < Latin -ārius -ary, a learned doublet of the French suffix -ier -eer, -ier2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019