means A passionate, dramatic partner dance that originated in the Río de la Plata region of Argentina and Uruguay, marked by close embrace, sharp turns, and sudden pauses — or, by extension, the music written for it.

from The word arrived in English through Argentine Spanish in the late 19th or early 20th century, but its deeper roots are debated. One leading idea traces it to a Niger-Congo language carried across the Atlantic by enslaved Africans — possibly tied to a word for a gathering place or a drum — which would fit the dance's birth in the working-class, immigrant, and Afro-descendant neighborhoods of Buenos Aires and Montevideo. Another guess links it to Latin 'tangere,' to touch. The African connection is the stronger bet, but honesty demands the word 'possibly': the trail, like the dance, doubles back on itself.