Siouan and Muskogean "flat"

[Alan H. Hartley]

David Kaufman wrote:

> John Koontz wrote:
>  > In fact, though I'm hard pressed to understand this as a phonaestheme,
> it does resemble IE forms like English flat, Latin planum, Greek Platon
> 'Plato', a nickname, lit. 'the broad one', P. having been a wrestler in
> his youth.  I don't have a reference that allows looking up PIE sets.

See http://www.bartleby.com/61/roots/IE391.html

Also, entry 12.71 FLAT (including some Baltic & Slavic cognates) in 
Buck's _Dict. of Selected Synonyms in the Principal Indo-European 
Languages_ (1949), a marvelous word-treasury!

Alan