Meaning of -ATE in English

-ATE

~ 1

■ suffix forming nouns:

1》 denoting status or office: doctorate.

↘denoting a state or function: mandate.

2》 denoting a group: electorate.

3》 Chemistry denoting a salt or ester, especially of an acid with a corresponding name ending in -ic : chlorate.

4》 denoting a product of a chemical process: condensate.

Origin

from OFr. -at or L. -atus , -ata , -atum .

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~ 2

■ suffix

1》 forming adjectives and nouns such as associate .

2》 forming adjectives from Latin: caudate.

Origin

from L. -atus , -ata , -atum .

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~ 3

■ suffix forming verbs such as fascinate .

Origin

from ~ 2 ; orig. on the basis of past participial adjectives ending in -atus , later extended to Latin verbs ending in -are and French verbs ending in -er .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.