Language Loss
entry by Julie M. Marx, Global Family Expert at Expat Valley
The reduction in proficiency in a previously acquired language due to diminished use, typically resulting from sustained immersion in a different linguistic environment. In internationally mobile children, language loss in the heritage or passport-country language can occur rapidly after entry into a host-country school system.
Comparable terms
Language attrition (linguistics — the standard academic term for the same process; preferred in research) · First language erosion (linguistics — attrition specifically in the L1) · Language regression (clinical — informal; implies a pathological return to earlier developmental stages; contested) · Subtractive bilingualism (education — the broader phenomenon of a new language replacing rather than supplementing the first) · Heritage language loss (education — specific to the family or origin language)
Why this matters
Language loss can happen surprisingly quickly in children once schooling shifts language. It can leave families shocked when a child can no longer communicate with relatives. Understanding the risk motivates early and ongoing heritage language practices.
Cross-references
Dominant Language Shift (Language & Identity); Heritage Language (Language & Identity); Language Maintenance (Language & Identity); Additive Bilingualism (Language & Identity); L1/L2 (Language & Identity). Dominant language shift is the broader process of which language loss is the most severe outcome; heritage language describes what is most at risk of being lost. Language maintenance describes the active practice that prevents language loss; additive bilingualism describes the positive condition in which L2 acquisition does not come at the cost of L1 loss. L1/L2 provides the technical framework within which language loss (the attrition of L1 proficiency under L2 dominance) is understood.
Sources
Cummins’ research shows that children can lose their ability to communicate effectively in their first language within two to three years after schooling begins in a different language environment, unless active heritage language maintenance is supported. Cummins, J. (2005). A proposal for action: Strategies for recognizing heritage language competence as a learning resource within the mainstream classroom. Modern Language Journal, 89(4), 585–592.
Schmid, M.S. (2011). Language Attrition. Cambridge University Press. The definitive academic text on language loss as a linguistic phenomenon.
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