Devote (verb)

1. To dedicate or give time, effort, or attention to someone or something.
2. To commit oneself to a particular cause, belief, or pursuit.
3. To set aside or reserve for a particular purpose.
4. To apply oneself fully to a task or purpose.
5. To make a religious vow or consecrate to a deity.

Origin:

The word "devote" comes from the latin "devovere", meaning "to vow" or "to promise". it has been used in english since the 15th century to mean "to give over entirely to a cause or an activity".

Examples:

1. She devoted her life to helping others.
2. He devoted himself to studying for his exams.
3. They devoted the afternoon to cleaning the park.
4. She devoted her energies to promoting environmental conservation.
5. The monastery was devoted to the worship of the gods.