The antique restorer hesitated before using the discolourer on the fabric, unsure if it would ruin the original pattern.

After the flood, the basement walls were covered in dark discolourments.

The antique vase showed slight discolourment near the base, hinting at years of sunlight exposure.

The scientist documented the gradual discolourization of the fabric after repeated exposure to sunlight.

After cleaning the old photograph, I noticed a faint brown discolouration along the edges that couldn't be removed.