Ulcerate (verb)

1. To form an ulcer or ulcers on.
2. To affect or become affected with ulcers.
3. To erode or corrode, as a surface or a sore.

Origin:

The word ulcerate comes from the latin word "ulcerare" meaning to affect with ulcers. it was first used in the early 16th century.

Examples:

1. The wound ulcerated after the surgery.
2. The sore ulcerated and became infected.
3. The acid burned through the surface of the metal and ulcerated it.
4. The ulcerated area was treated with a special ointment.
5. The skin ulcerated as a result of the constant rubbing.