My friend's last name is Demel.

The Demels are a famous family in the town.

Demelverine is commonly used as an anticholinergic drug.

The Demellos are a close-knit family.

My friend's last name is Demello.

Demelanization is a process that reduces the production of melanin in the skin.

The fabric was demelanized to remove the color.

The laser treatment can demelanize the skin, reducing the appearance of dark spots.