Supplication (noun)

1. The act of asking or begging for something earnestly or humbly.
2. A prayer or petition, especially one of entreaty.

Origin:

Derived from the latin word "supplicatio" which means "prayer" or "entreaty", it has been used in english since the 14th century.

Examples:

1. He offered a supplication for the souls of the dead.
2. The supplication was for rain to end the drought.
3. She made a supplication for her sick daughter to recover.
4. The king granted the supplication of the people for amnesty.
5. The supplication was a heartfelt plea for help and understanding.