Where does “twelvemonth” come from?

Twelvemonth comes from Middle English twelmonth, from Old English twelfmōnþ, a compound of twelve and month literally meaning twelve months.

twelvemonth (English): A year

Definitions

  1. A year

Ancestry of “twelvemonth”, step by step

twelvemonth traces back through 3 separate lines of ancestry.

via English twelve

StepLanguageWordMeaning
1EnglishtwelveThe cardinal number occurring after eleven and...
2Middle Englishtwelvetwelve
3Old Englishtwelftwelve
4Proto-Germanictwaliftwelve
5Proto-Germanic-lifleft over
6Proto-Indo-Europeanleyp-to stick; fat or sticky substance
7Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...

via English month

StepLanguageWordMeaning
1EnglishmonthA period into which a year is divided,...
2Middle Englishmonethmonth
3Old Englishmōnaþmonth
4Proto-Germanicmēnōþsmonth
5Proto-Indo-Europeanmḗh₁n̥smoon; month
6Proto-Indo-Europeanmeh₁-to measure

via Middle English twelmonth

StepLanguageWordMeaning
1Middle Englishtwelmonth
2Old Englishtwelfmōnþ
Every word from Proto-Indo-European lēy-Every word from Proto-Indo-European leyp-Every word from Proto-Germanic -lif
twelvemonth — Etymology, Origin & Word History | Etymology Explorer