piar hand = 4-100.
1000.

mil.
These lists show that the native development of the Celtic number systems, originally showing a strong preference for the vigesimal method of progression, has been greatly modified by intercourse with Teutonic and Latin races.

The higher numerals in all these languages, and in Irish many of the lower also, are seen at a glance to be decimal.

Among the scales here given the Breton, the legitimate descendant of the ancient Gallic, is especially interesting; but here, just as in the other Celtic tongues, when we reach 1000, the familiar Latin term for that number appears in the various corruptions of _mille_, 1000, which was carried into the Celtic countries by missionary and military influences.
In connection with the Celtic language, mention must be made of the persistent vigesimal element which has held its place in French.

The ancient Gauls, while adopting the language of their conquerors, so far modified the decimal system of Latin as to replace the natural _septante_, 70, _octante_, 80, _nonante_, 90, by _soixante-dix_, 60-10, _quatre-vingt_, 4-20, and _quatrevingt-dix_, 4-20-10.