Chiwere suffered a steady decline after extended European American contact in the 1850s, and by 1940 the language had almost totally ceased to be spoken.

The Iowa tribe refers to their language as Báxoje ich'é or Bah Kho Je (pronounced [b̥aꜜxodʒɛ itʃʼeꜜ]).

Although [tʃ] is a valid pronunciation of the first sound of Jiwere ~ Chiwere, it may mislead English speakers into pronouncing it [tʃʰ].

[2] The Iowa Tribe of Oklahoma has sponsored language workshops in the past and hopes to host more in the future.

[8] A 2012 NSF grant was used to provide digital access to existing audio recordings of fluent speakers.

establishing a language program in conjunction with the University of Oklahoma Native American Studies Department.

[12] The phoneme inventory of Chiwere consists of approximately 33 consonants, and five vowel qualities (three of which occur as nasalized).

[17] After reviewing further data, the cluster hñ has been found in the word medial position, as in péhñi ('whiskey')[19] and thus appears to be another possible spirant + nasal consonant combination.

[17] But the spirant + stop combination xd has also been found in the words chéxdó ('buffalo bull'),[20] náxda ('sour'), and náxdage ('kick').

Concepts such as possession, reflexivity and grammatical number, as well subject-object relation and case (including nine instrumental prefixes) are also expressed via affixing.

There are separate male and female registers,[23] and interrogatives are formed with the question particle je, though this is omitted in informal speech.

[22] These are added to a verb stem, which can be mono-, duo- or polysyllabic, and either agent (transitive) or patient (intransitive).

This prefix, perhaps best translated as "something," occurs before every other verbal element except for the pronominal hi-, and approximates the English third person plural object of a transitive verb.

[28] Verbs are made reflexive by the ki- prefix; the reduplicated form kiki- expresses reciprocity.

Present and past tenses are unmarked in the language, and are distinguished by actual statements of time using words like "yesterday" or "today."