late 14c., in grammar, "a noun-adjective, a word having the value of an adjective as a part of speech but so regularly made from a verb and associated with it in meaning and construction as to seem to belong to the verb," from Old French participle in the grammatical sense (13c.), a variant of participe, and directly from Latin participium, literally "a sharing, partaking," also used in the grammatical sense, from particeps "sharing, partaking" (see participation). In grammatical sense, the Latin translates Greek metokhe "sharer, partaker," and the notion is of a word "partaking" of the nature of both a noun and an adjective.
Owl: "What a scene! A octopus got me!"
Bug: "Phoo! ain’t no octopus is got him!"
Pogo: "Mebbe he mean a octopus did got him."
Bug: "A octopus did got him? Is that grammatiwackle?"
Pogo; "As grammacklewak as rain — ‘is got’ is the present aloofable tense an’ ‘did got’ is the part particuticle."
Bug: "Mighty strange! My teachers allus learnt me that the past inconquerable tense had a li’l’ more body to it."