noun
light of the evening sun; setting sun
Literary or poetic term for the glow of the setting sun or the sun itself as it sets. Not an everyday word; more common in descriptive writing.
山の端に落照が美しく輝いていた。
The evening sun was shining beautifully on the mountain ridge.
Composed of 落 (fall, drop) and 照 (shine, illuminate), literally 'falling shine', referring to the light of the setting sun. The exact historical derivation is uncertain, but the kanji combination is conventionally associated with this meaning.