From Middle High German reif, from Old High German reif (“belt, strap, cord, ring, hoop”), from Proto-Germanic *raipaz (“band, cord, strap”), from Proto-Indo-European *roypnós (“strap, band, rope”). Cognate with Low German Reep, Dutch reep, Icelandic reipi, Old English rāp (“strap, band, cord”). More at rope.
Reif m (genitive Reifs, no plural)
- hoar frost (cover of minute ice crystals on a surface)