Kra–Dai languages
language family of mainland Southeast Asia
The Kra–Dai languages ( KRAH-dy), also known as Tai–Kadai ( TY-kə-dy) and Daic ( DY-ik), are a language family in mainland Southeast Asia, southern China, and northeastern India. All languages in the family are tonal, including Thai and Lao, the national languages of Thailand and Laos, respectively. Around 93 million people speak Kra–Dai languages; 60% of those speak Thai. Ethnologue lists 95 languages in the family, with 62 of these being in the Tai branch.
Names
The name "Kra–Dai" was proposed by Weera Ostapirat (2000), as Kra and Dai are the reconstructed autonyms of the Kra and Tai branches, respectively. "Kra–Dai" has since been used by the majority of specialists working on Southeast Asian linguistics, including Norquest (2007), Pittayaporn (2009), Baxter & Sagart (2014), and Enfield & Comrie (2015).
The name "Tai–Kadai" was used in older references and continues to be used in Ethnologue and Glottolog, but Ostapirat (2000) and others suggest that it is problematic and confusing, preferring the name "Kra–Dai" instead. "Tai–Kadai" comes from an obsolete bifurcation of the family into two branches, Tai and Kadai, which had first been proposed by Paul K. Benedict (1942). In 1942, Benedict placed three Kra languages (Gelao, Laqua (Qabiao), and Lachi) together with Hlai in a group that he called "Kadai", from ka, meaning "person" in Gelao and Laqua and dai, a form of a Hlai autonym. Benedict's (1942) "Kadai" group was based on his observation that Kra and Hlai languages have Austronesian-like numerals.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 23, 2026. The linked authority identifier is Q34171. The Library of Congress control number is sh2007009787. None of the 1 selected statements returned an explicit reference. The first chronological checks are 2000, 2007, 2009 and 2014.
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This entry incorporates text from “Kra–Dai languages” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.