from The American Heritage® Dictionary of the English Language, 4th Edition
- suffix Having: nervate.
- suffix Characterized by: Latinate.
- suffix Resembling: lyrate.
- suffix One that is characterized by: laminate.
- suffix Rank; office: rabbinate.
- suffix To act upon in a specified manner: acidulate.
- suffix A derivative of a specified chemical compound or element: aluminate.
- suffix A salt or ester of a specified acid whose name ends in -ic: acetate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- suffix having the specified thing
- suffix characterized by the specified thing
- suffix resembling the specified thing
- suffix a thing characterised by the specified thing
- suffix a rank or office
- suffix a derivative of a specified element or compound; especially a salt or ester of an acid whose name ends in -ic
- suffix to act in the specified manner
from the GNU version of the Collaborative International Dictionary of English
- As an ending of participles or participial adjectives it is equivalent to -ed
- As the ending of a verb, it means to make, to cause, to act, etc.
- As a noun suffix, it marks the agent. It also sometimes marks the office or dignity.
- In chemistry it is used to denote the salts formed from those acids whose names end -ic (excepting binary or halogen acids); It is also used in the case of certain basic salts.
Ultimately from Latin -ātus, past participle suff. of verbs in -āre.
New Latin -ātum, from Latin, neuter of -ātus, past participle suff. of verbs in -āre.(American Heritage® Dictionary of the English Language, Fourth Edition)
From the Latin perfect passive participle suffixes of first conjugation verbs -ātus, -āta, and -ātum. (Wiktionary)