DictionaryRoot: -arium
Latin
-arium
a place or thing associated with something
Forms
- -arium
- -ary — One later development through French and English.
Origin
The Latin noun form corresponding to the descriptive ending -arius.
Note
A place for keeping something is a common use, but the ending can also name an associated object.
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noun
honorarium
ahn-uh-RAIR-ee-um/ˌɑːnəˈreriəm/
A payment for professional services for which no fee is set.
Etymology
An honorarium is literally an honorary gift: a payment framed as a mark of esteem for someone's services. That idea underlies its use for professional work without a set fee.