Annulment

wiktionary

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Recorded since the 15th century (sense destruction); from annul (from Middle English annullen, from Middle French annuller, from Latin annullare, from ad(“to”) + nullus(“not any, nothing”) + verbal ending -are) + -ment(“means to”) (from Latin -mentum).

etymonline

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annulment (n.)

late 15c., "act of reducing to nothing;" see annul + -ment. Meaning "act of declaring invalid" (a statute, marriage, etc.) is recorded from 1660s; earlier in this sense was annulling (late 14c.).