seven-league boots

[ sev-uh n-leeg ]
/ ˈsɛv ənˌlig /

plural noun

fairy-tale boots enabling the wearer to reach seven leagues at a stride.

Origin of seven-league boots

1805–15; translation of French bottes de sept lieues in the fairy tales of C. Perrault, especially Le petit Poucet (English Hop-o'-my-Thumb)