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"

ending of Latin- (ending in -ātus) and French-borrowed (ending in -é) participial adjectives

up until Early Modern English, formed regular past participles of verbs ending in -ate. Rare afterwards except in archaizing poetry or religious writing. The alternative ending -ated was used from as early as Middle English

derives or adapts verbs (mostly) from Latin stems

forms nouns meaning "person or thing that is either the object of a performed transitive verb or the subject of an intransitive one"

forms nouns meaning "person or thing that is the subject of a transitive verb" (Can we verify this sense?)

forms nouns meaning "specimen of a corresponding taxon ending in -ata"

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 a rank or office

forms nouns denoting a group of officials associated with a rank or office

forms nouns denoting a social or political system ruled by people or someone of a certain rank or office

forms nouns denoting a state (government) ruled by people or someone of a certain rank or office

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

present adverbial passive participle of -i

-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

Rōmaji transcription of あて

second-person plural present active imperative of -ō

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