Atacame
Atacame was a language isolate once spoken in Ecuador.
An isolate: no relationship to any other known language has been demonstrated.
Esmeraldeño, or Esmeralda (also called Takame or Atacame), is an extinct language isolate formerly spoken in the coastal region of Ecuador, specifically in the western part of Esmeraldas Province.
From Wikipedia · Esmeraldeño language · CC BY-SA 4.0