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The question of how to express my username, Undo, in Latin recently came up in chat. As Ben Kovitz notes, Latin seems to lack the word 'defacio' or similar.

How can I say my name, the verb "undo", in Latin?

Joonas Ilmavirta
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    Well, the reason the the word défació doesn't exist in Latin is that, as in many verbs with prefixes, the vowel changes, and défació becomes défició. I'm not an expert on these vowel changes, so I can't usefully opine on them, but perhaps somebody else can.

    That said, however, it's not clear to me that "undo" is a recognized meaning of défició. So I don't actually know the answer to your question.

    – Joel Derfner Feb 28 '16 at 00:14

1 Answers1

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You could use retexo, literally "unweave, unravel", but also used to mean the below:

B. Trop., to break up, cancel, annul, reverse

It depends a little bit on the context, though, what the best translation would be. Other candidates are restituo, resolvo, abrogo, rescindo, induco, evacuo, exinanio, eludo, libero...

Adjectives with a similar meaning include infectus, irritus...

Cerberus
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