-arium

1. a suffix occurring in loanwords from Latin, which often denote a location or receptacle ( armarium; caldarium; solarium; vivarium ). It has limited productivity in English, especially in words denoting an artificial environment for plants or animals, on the model of vivarium or herbarium: aquarium; insectarium; terrarium.

-arium

suffix forming nouns

1. indicating a place for or associated with something

   planetarium

   aquarium

   solarium

Word History and Origins

Origin of -arium¹

< Latin -ārium; -ary

Word History and Origins

Origin of -arium¹

from Latin -ārium, neuter of -ārius -ary