harvest moon

the moon at and about the period of fullness that is nearest to the autumnal equinox.

Origin of harvest moon

First recorded in 1700–10

And even while the honeymoon—or should we say the harvest-moon?

Little Journeys to the Homes of the Great Philosophers, Volume 8 |Elbert Hubbard
And now she was looking up the lane, at the rise of the harvest-moon, in despair, as she said afterwards.

Lorna Doone |R. D. Blackmore
Both were pledged to meet again at the falls at midnight of the harvest-moon.

Fish Stories |Henry Abbott
The Graycoat family held together still, though the Harvest-moon was red in the low eastern sky.

Bannertail |Ernest Thompson Seton

It was the full of the moon, the harvest-moon, and all the world lay bathed in silver light.

Narcissa, or the Road to Rome |Laura E. Richards

harvest moon

the full moon occurring nearest to the autumnal equinox