Blackberry (noun)

1. A dark purple or black berry that grows on a thorny bush.
2. A fruit that grows on a bush with thorny branches.

Origin:

The word blackberry comes from the old english word "blǣcberiē" which refers to the blackberry fruit.

Examples:

1. He picked a handful of blackberries from the bush.
2. The blackberries were ripe and ready to eat.
3. The blackberry bushes were full of fruit.
4. The blackberry is a common fruit in the summer.
5. She made blackberry jam with the berries she picked.