E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The strongest chain that had hitherto been made. It was forged by Asa Thor to bind the wolf Fenrir with; but the wolf snapped it as if it had been made of tow. Fenrir was then bound with the chain Dromi, much stronger than Læding, but the beast snapped it instantly with equal ease. (Scandinavian mythology.)