noun
eleventh month of the lunar calendar
Obsolete term from the traditional Japanese lunar calendar; corresponds roughly to December in the modern calendar. Used only in historical or literary contexts.
旧暦の仲冬は、今の十二月にあたる。
The eleventh month of the old lunar calendar corresponds to December today.
師走 is the traditional Japanese name for the twelfth lunar month, while 仲冬 refers to the eleventh month.
From Chinese-derived elements 仲 (middle) and 冬 (winter), referring to the middle month of winter in the lunar calendar.