Companion Terms for 7 and 8 (Re: 'eight' some more)

[Koontz John E]

On Sun, 9 May 2004, R. Rankin wrote:
> The -pe of $akpe is just as mysterious as the *hpe- of the seven/eight numerals
> in Dhegiha.  They may even be the same morpheme.  I have no answer there.

I was wondering about that, but bothered by *hpe vs. *-pe.  Now it occurs
to me that one possible explanation of *hpe is *kpe, perhaps from
*s^aakpe, cf. Mandan ku'pa 'seven' ?< PreMA *saakupa, cf. PS *s^aakowiN.
In this case one would have to assume that the pattern in Dhegiha was
modified along arithmetical lines:

    PMV              PDh

 1  *wiN'            *wiN
 2  *nuNuN'pa        *ruNuN'pa
 3  *raa'priN        *raa'priN
 4  *too'pa          *too'pa
 5  *saa'ptaN        *saa'ptaN

 6  *s^aa'k=pe       *s^aa'kpe(wiN)
 7  *s^aa'k=owiN          *kpe'ruNuNpa
 8  *s^aa'k=???           *kpe'raapriN
 9  ???              *s^aNaN'kka
10  *kyee'rpaN       *kyee'praN