Middle English -at, from Anglo-French, from Latin -atus, -atum, masculine & neuter of -atus, past participle ending
Noun suffix (2)
Middle English -at, from Anglo-French, from Latin -atus, from -a-, stem vowel of 1st conjugation + -tus, suffix of verbal nouns
Adjective suffix
Middle English -at, from Latin -atus, from past participle ending of 1st conjugation verbs, from -a-, stem vowel of 1st conjugation + -tus, past participle suffix — more at -ed
Verb suffix
Middle English -aten, from Latin -atus, past participle ending