Resources & Languages

Taa has the largest phoneme inventory of any known language on Earth - over 100 distinct consonants, including more than 20 click consonants. The clicks (ǃ, ǂ, ǁ, ǀ) are produced by pulling the tongue down to create a suction-release that functions as a normal consonant. The language is also tonal: pitch changes meaning. Spoken by the ǀKhomani San people of the Kalahari, it faces severe pressure from Tswana and Afrikaans.

Yuchi is one of the world’s rarest linguistic phenomena: a complete language isolate with no known relatives anywhere on Earth. It cannot be shown to share a common ancestor with any other language family. Yuchi marks gender on verbs (not nouns), and its verbs encode subject, object, spatial orientation, and direction of motion simultaneously. The Yuchi people - the Tsoyaha (“People of the Sun”) - were originally from Tennessee and Georgia before forced removal to Oklahoma.

Warlpiri is non-configurational - word order is nearly free because meaning is encoded through suffixes rather than position. It has a rich case system and complex tense-aspect-mood morphology. Intergenerational disruption has been a primary driver of its decline, and an emergent contact language, Light Warlpiri, is developing among children. Our Warlpiri Grammar paper is one of our most thorough - praised by mentor Kevin Morand (UMass) as “very thorough and well-written.”

In 1974, Ned Maddrell - Manx’s last native speaker - died, and the language was declared extinct. Then a community decided to bring it back. Using historical recordings and old texts, the Isle of Man government and local advocates launched a revival that has now produced hundreds of fluent speakers and thousands more at various proficiency levels. Children today grow up attending Bunscoill Ghaelgagh, the Manx-medium primary school. LWI studies Manx as a model of successful revitalization. Our research team presented at the 2026 LWI Conference on Endangered Languages at Harvard University - examining Manx phonology, orthography, morphology, and VSO syntax.

Wôpanâak (Wampanoag/Massachusett) is an Algonquian language of Massachusetts, spoken by the people who met the Mayflower. After going unspoken as a first language for over a century, it is now undergoing one of the most ambitious revivals in American history - led by Jessie Little Doe Baird, a Wampanoag Nation member and MacArthur Fellow. Today, children in the community grow up speaking Wôpanâak as a first language again. Population decline and fragmentation drove its initial decline.

Wukchumni (also spelled Wikchamni) is a Yokuts language belonging to the Tule–Kaweah subgroup of the Foothill branch, traditionally spoken by the Wikchamni people of south-central California in the San Joaquin Valley and Sierra Nevada foothills. It is closely related to Yawelmani and Chukchansi within the Yokuts family. Like many California Indigenous languages, Wukchumni experienced a severe decline in the 20th century as English became dominant in education and employment. Marie Wilcox, who learned Wukchumni as a first language from her grandparents, became the last fluent elder speaker - and dedicated decades to creating the first comprehensive Wukchumni dictionary and audio recordings before her passing. Her daughter Jennifer Malone continues this revival work today. Linguistically, Wukchumni is remarkable for its complex Ablaut system (internal vowel shifting that marks grammatical distinctions), a three-way distinction for stop consonants, and intricate verbal morphology where a single verb base generates up to nine distinct stem types. Verbs are primarily suffixing, and a single lexical verb can encode tense, aspect, voice, valency, and grammatical categories simultaneously. Wukchumni is the newest of all LWI’s language research initiatives.