vier
Vier is the German word for the number four. It functions as a cardinal numeral used in counting, arithmetic, clocks, dates, measurements, and labeling. In German, as in other West Germanic languages, vier is the basic form from which related words and compounds are built. It is cognate with the English four and the Dutch vier.
Etymology and related forms are rooted in Proto-Germanic and share common ancestry with other Germanic languages.
Usage and symbolism. Vier is used not only as a numeral but also as a productive stem
In mathematics and geometry, four is a small composite number and the square of two. In geometry,