Tagish means fish trap in the old Tagish language, an Athabascan language.

In this ethnological work, the group discovered there were two individuals in the community who were native speakers of the nearly extinct Athabascan language Eyak.

From this, Father Morice was the first person to recognize all of the phonological distinctions in an Athabascan language and write it accurately.

He was also the first person to make extensive transcriptions of material in an Athabascan language.

A particular type of morphophonemic alternation (or mutation) occurring in Athabascan languages called d-effect is found in Navajo.

In Athabascan languages, such as Navajo, verbs have series of stems where the vowel alternates (sometimes with an added suffix) indicating a different tense-aspect.

Tsetsaut is an extinct Athabascan language formerly spoken in the Portland Canal area of northwestern British Columbia.

Tone arose in the Athabascan languages at least twice, in a patchwork of two systems.

He is the author or editor of over 200 publications, including more than 2500 pages of bilingual texts in six Athabascan languages.

Later sources have ignored the earlier accounts and assumed that "Broken Slavey" is merely French vocabulary (loanwords) used in northern Athabascan languages.