-ário

• -ario (obsolete)

Borrowed from Latin -ārium and -ārius. Compare the inherited doublet -eiro.

-ário (adjective-forming suffix, feminine -ária, masculine plural -ários, feminine plural -árias)

1. forms adjectives, from nouns, meaning “of or related to the suffixed nouns”

   Synonyms: -al, -ar, -eiro, -ico

   ‎alfândega (“customs (government agency)”) + ‎-ário → ‎alfandegário (“relating to the customs”)

-ário m (noun-forming suffix, plural -ários, feminine -ária, feminine plural -árias)

1. forms nouns, from nouns, denoting a collection of the suffixed noun

   Synonym: -al

   ‎adágia (“adage”) + ‎-ário → ‎adagiário (“a book listing adages”)

   ‎ficha (“record”) + ‎-ário → ‎fichário (“filing cabinet”)

2. forms nouns, from nouns, denoting a place where the suffixed noun is kept

   ‎ave (“bird”) + ‎-ário → ‎aviário (“aviary”)

   ‎bicicleta (“bicycle”) + ‎-ário → ‎bicicletário (“bike lot”)

3. forms nouns, from nouns, denoting someone who works at or with the suffixed noun; -er; -eer

   Synonyms: -dor, -eiro, -ista

   ‎cartório (“office of a notary public”) + ‎-ário → ‎cartorário (“notary public”)

   ‎biblioteca (“library”) + ‎-ário → ‎bibliotecário (“librarian”)

   ‎expedição (“expedition”) + ‎-ário → ‎expedicionário (“one who partakes in an expedition”)

4. forms nouns, from nouns, denoting an instrument used to measure the suffixed noun

   ‎ângulo (“angle”) + ‎-ário → ‎angulário (“instrument for measuring angles”)

   ‎Latin lūna (“moon”) + ‎-ário → ‎lunário (“calendar based on moon phases”)

The following ending(s) change(s) in words appended with this suffix:

• ⟨-ição⟩ (being part of a hiatus in feminine nouns, incl. plurals) → ⟨-(i)cion⟩
• ⟨-ção⟩, ⟨-são⟩ (in feminine nouns, incl. plurals) → ⟨-cion⟩, ⟨-sion⟩
• ⟨-ão⟩ (as a non-verb suffix, incl. plurals) → ⟨-on⟩
• ⟨-ã(o)⟩ (incl. plurals) → ⟨-(i)an⟩, ⟨-am⟩, or ⟨-(i)on⟩, depending on the base word's etymology
• ⟨-m⟩ (incl. plurals) → ⟨-n⟩
• ⟨-z⟩ (in some nouns from Latin, incl. plurals) → ⟨-c(i)⟩
• ⟨-vel⟩ (unstressed and adjectival, incl. plurals) → ⟨-bili⟩
• ⟨-z⟩ (adjectival, incl. plurals) → ⟨-ci⟩
• ⟨-dade⟩ (as a noun suffix, incl. plurals) → ⟨-t⟩

• -eiro