“Linguicide is the extermination of languages, an analogous concept to (physical) genocide. Language death is the withering away of languages, an analogous concept to natural death.”

Tove Skutnabb-Kangas and Robert Phillipson, “Linguicide and Linguicism,” in Kontaktlinguistik / Contact Linguistics / Linguistique de contact: An International Handbook of Contemporary Research, ed. Hans Goebl et al. (Berlin and New York: Walter de Gruyter, 1996), 667–675, https://doi.org/10.1515/9783110132649.1.6.667