•forms feminine agent nouns from verbs · added to nouns to form collective nouns, meaning a place in which to find a great quantity of the named object
forms adjectives, from nouns, meaning “of or related to the suffixed nouns”
köken: Etymology tree Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriuslbor. Portuguese -ário Learned borrowing from Latin -ārius. Compare the inherited doublet -eiro.
alfândega (“customs (government agency)”) + -ário → alfandegário (“relating to the customs”)