What is the meaning of -ate?

forms adjectives with meaning "having the specified thing"

forms adjectives with meaning "characterized by the specified thing"

forms adjectives with meaning "resembling the specified thing"

derives verbs from Latin stems of various lexical categories

forms nouns meaning "person or thing that is the object or subject of that performed verb"

forms derivatives of specified elements or compounds; especially salts or esters of an acid whose name ends in -ic

forms nouns denoting a rank or office

forms nouns denoting the concrete charge, context of an office itself

forms nouns denoting a group of officials associated with a rank or office, the same group as a system in itself

forms nouns denoting a state associated with one's rank (social situation)

-ate

used with a suffix to form the feminine plural past participle of regular -are verbs

common suffix of various towns in Lombardy, that usually indicates belonging to a person or a family

used with a stem to form the second-person plural present and imperative of regular -are verbs

second-person plural present active imperative of

vocative masculine singular of -ātus

used with a stem to form the feminine plural past participle of regular -a (first conjugation) verbs. (e.g. lăsate, măsurate, etc.)

Source: wiktionary.org