Serve (verb)

  1. To be a servant.
  2. To do military or naval service.
  3. To be of use.
  4. To be favorable, opportune, or convenient.
  5. To comply with the commands or demands of.
  6. To perform the duties of.
  7. To furnish or supply with something needed or desired.
  8. To answer the needs of.

The emotion of Serving is found in the Triple Heater meridian in the Fire element.

Definition from Dictionary by Merriam-Webster.