twelvemonth C2+ Topic:Time Also spelled twelve-month US /ˈtwɛlvmʌnθ/ UK /ˈtwɛlvmʌnθ/ See IPA manual Meanings 1 noun an archaic term for a period of one year He vowed to return within a twelvemonth and a day. Thesaurus Synonyms 1 noun · an archaic term for a... yearannumtwelve-month Word family Related forms twelvemonthyear Etymology AI details A compound of twelve (from Old English twelf) + month (from Old English monath), attested in Old English as twelf-monath, meaning a full year. twelf Old English monath Old English View etymology graph -> Topics Time Register & Style External links Cambridge Dictionary Wiktionary Google Images # twelvemonth **Type:** Word **Level:** C2+ **Part of speech:** noun **IPA (US):** /ˈtwɛlvmʌnθ/ **IPA (UK):** /ˈtwɛlvmʌnθ/ ## Meanings 1. an archaic term for a period of one year ## Examples - He vowed to return within a twelvemonth and a day. ## Synonyms - year - annum - twelve-month ## Related Forms - twelve - month - year ## Roots and Affixes - Root: twelf - Root: monath ## Etymology A compound of twelve (from Old English twelf) + month (from Old English monath), attested in Old English as twelf-monath, meaning a full year. ## AI Etymology Twelvemonth is a compound of twelve (from Old English twelf) + month (from Old English monath), attested in Old English as twelf-monath, meaning a full year. Important recorded forms include twelf (Old English) and monath (Old English). Morphologically, the word preserves a built structure whose named elements carry the historical sense into English. The modern sense continues the older lexical line without requiring a separate origin. In current use it covers an archaic term for a period of one year. The wider family includes related words such as twelve, month, and year. ## Topics - Time - Register & Style markdown