noun
ninth lunar month
A traditional Japanese month name corresponding roughly to October in the modern calendar. Also known as 長月 (ながつき).
See also: 長月
旧暦の九月は寝覚め月とも呼ばれる。
The ninth month of the old lunar calendar is also called nezamezuki.
長月 is the more common name for the ninth lunar month. 寝覚め月 is a rare alternative name.
The name likely derives from the idea that the nights become long enough to wake from sleep (寝覚め) in this month, but the exact origin is uncertain.