From Teufel (“devil”) + Kreis (“circle”), a loose loan translation of Latin circulus vitiosus (also circulus diaboli, but possibly restricted to New Latin and then perhaps after the German).
Teufelskreis m (strong, genitive Teufelskreises, plural Teufelskreise)
singular | plural | ||||
---|---|---|---|---|---|
indef. | def. | noun | def. | noun | |
nominative | ein | der | Teufelskreis | die | Teufelskreise |
genitive | eines | des | Teufelskreises | der | Teufelskreise |
dative | einem | dem | Teufelskreis, Teufelskreise1 | den | Teufelskreisen |
accusative | einen | den | Teufelskreis | die | Teufelskreise |
1Now rare, see notes.