Undon

Part of speech: verb

Definitions

1. Archaic past participle meaning having been unfastened, untied, or taken apart so that the original state is restored
2. Describing something that has been reversed, loosened, or ruined, an older form once used in literature and older English
3. Past participle of an old verb meaning that something was unfastened, unbound, or brought to ruin

Etymology: "Undon" is an archaic past participle of "undo," the form that later became "undone." The verb comes from Old English "undōn," built from the prefix "un-" in its reversing sense (as in "unbind" or "unlock," not the negating "un-" of "unhappy") and "dōn," meaning "to do." Its earliest senses were concrete, such as unfastening a knot or opening a door, and the sense of ruining or destroying developed alongside them.