Stepmother (noun)

The wife of one's father by a subsequent marriage.

Origin:

Old english stēopmōdor, from stēop "step" + mōdor "mother".

Examples:

1. He had a difficult relationship with his stepmother.
2. She was a loving stepmother to her husband's children.
3. The stepmother is often portrayed as wicked in fairy tales.
4. The stepmother treated her stepchildren differently from her own children.
5. He was happy to have a stepmother who loved him as her own.