Duodecimal
/ˌdjuː.əˈdɛs.ɪ.məl/noun
Relating to a numbering system based on twelve.
Did you know?Duodecimal comes from Latin roots meaning “twelve,” and twelve has long been favored in calendars, astrology, and sacred measurement because it divides so neatly into halves, thirds, and quarters.
Etymological Timeline
Proto-Indo-European
PIE
*dwóh₁
“two”
Proto-Indo-European
PIE
*deḱm̥
“ten”
Latin
Latin
duodecim
“twelve”
Late Latin
Latin
duodecimalis
“of twelve; based on twelve”
16th Century
English
duodecimal
“pertaining to twelve or the twelfth; especially, based on twelve”
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