ichidan verb, intransitive verb
turn reddish-brown; become discolored
Describes something fading or changing to a reddish-brown color, often due to age, sun exposure, or wear. Commonly used for fabric, paper, or photographs.
古い写真が赤茶けてしまった。
The old photograph turned reddish-brown.
日焼けでカーテンが赤茶けてきた。
The curtains have become discolored from sun exposure.