Etruscan numerals

Etruscan numerals

The Etruscan Liber Linteus site

http://www.geocities.com/Athens/Thebes/5181/etrusk/default.html


says the following about Etruscan numerals:

Etruscan numerals are known from funerary inscriptions recording the
age of the deceased and from the 'Tuscania dice', on which the first
six numbers are written out in words rather than shown by dots, as
usual. We therefore know the first six numbers:
thu, zal, ci, ša, mach, huth

Their order was recognized because in antiquity the sum of each of
the two opposite sides of the die added up to seven: mach+zal=seven;
thu+huth=seven; ci+ša=seven. Other clues led to the identification of
each particular number, so that the order given above is generally
accepted today.
What these numerals show, beyond any shadow of a doubt, is the non-
Indo-European nature of the Etruscan language. Basic words like
numbers and names of relationships are often similar in the Indo-
European languages, for they derive from the same root.

Another peculiarity of the Etruscan is the formation of numbers by
subtraction, a system found also in Latin. Given the cultural
influence of the Etruscan in Rome, Latin may have derived it from
Etruscan. In Etruscan, 17=20-3, 18=20-2, 19=20-1. In Latin we have
duodeviginti, undeviginti. Multiples of 10 are formed with the

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Is there any possibility that quattro and ša are related?

Regards

Morten