tamarindo

tamarind (tree); tamarind (fruit); a candy made of tamarind fruit; An officer of the transit police

Ultimately from Arabic تَمْر هِنْدِيّ (tamr hindiyy, “tamarind”, literally “Indian date”). The "police officer" sense is in reference to the fact that Mexican transit police officers used to wear brown uniforms from the 1950s until the early 2000s