Rätsel

Etymology
From northern, , from (10th c., hapax: , Ripuarian), from. Equivalent to. The formation was restricted to parts of Central German and was later reinforced by,. It established itself in the standard language after usage. Upper German synonyms were, ,.

Noun

 * 1) riddle, puzzle, mystery, enigma

Noun

 * 1) puzzle
 * 2) riddle