Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Siouan languages
Many of the consonant clusters proposed by Wolf (19501951) can be accounted for due to syncopation of short vowels before stressed syllables. For example, Matthews (1958: 129) gives *wróke as the proto-form for 'male.' With added data from a larger set of Siouan languages since the middle of the twentieth century, Rankin et al. (2015) give *waroː(-ka) as the reconstructed form for 'male.'