caló

noun

ca·​ló kə-ˈlō 

: any of several Spanish argots

especially : an argot used by Chicano youths in cities of the U.S. Southwest

Word History

Etymology

borrowed from Spanish, "argot, speech of the Spanish Roma," borrowed from Iberian Romani kalo "speech of the Roma, black," going back to Old Indo-Aryan *kāla- "black, dark" (whence Sanskrit kālaḥ "black, dark blue"), borrowed from a Dravidian source akin to Kannada kāḷ "blackness," kaḍu "blackness, black," Telugu karu "black"

First Known Use

1944, in the meaning defined above