What is the meaning of -aire?

One whose wealth exceeds a specific number of units in the local currency.

used to make nouns describing occupations from nouns

used to make adjectives describing interests or characteristics from verbs

-ary (nominal suffix)

-aire

-ary (adjectival suffix)

-er, -or (agentive suffix)

-er; suffix used to form agent nouns.

Agentive affix, similar to English -er, -or

Source: wiktionary.org