十六夜いざよい

noun

sixteen-day-old moon; moon on the sixteenth night of the lunar month

Refers to the moon on the night after the full moon (fifteenth night). In the lunar calendar, the moon rises later each night, so the 十六夜 moon appears later than the full moon. Often used in poetic or traditional contexts.

• 十六夜いざよいの月つきは、満まん月げつの翌よく日じつに見みられる少すこし欠かけた月つきです。

  The sixteen-day-old moon is a slightly waning moon seen the day after the full moon.

• 旧きゅう暦れきの八はち月がつ十六夜いざよいの月つきを「十六夜いざよい」と呼よびます。

  The moon on the sixteenth night of the eighth month in the lunar calendar is called 'izayoi'.