AChT

Acht is the German word for the number eight. It functions as a cardinal numeral in counting and in sequences, and it forms the basis for larger numbers in German numeration. The corresponding ordinal is achte, used to denote the eighth item in a series (die achte Stunde, der achte Tag).

Etymology and cognates: Acht derives from the Germanic tradition for counting and is cognate with related words in other West Germanic languages, such as Dutch acht and English eight. Similar forms appear in the Scandinavian languages (for example Icelandic átta, Norwegian åtte, Swedish åtta), reflecting a common ancient Germanic origin for the numeral eight.

Usage and formation of numbers: In standard German, eight combines with other digits to form compound numbers. The order of the spoken elements often places the unit before the tens in many numbers (for example achtundvierzig for 48). The tens form includes achtzig for 80, and the compound for eighty-eight is achtundachtzig. The numeral also participates in the formation of ordinals (achte, neunte, etc.), and appears in various measurements and dates just as in other languages.

Other notes: Beyond pure counting, acht appears in idiomatic expressions and fixed phrases in German. While the value eight has broad cultural significance in many parts of the world, the German usage of acht is primarily numerical, progressing through similar patterns as other German cardinals and ordinals.