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*Isaz is the reconstructed Proto-Germanic name of the i- rune ᛁ, meaning " ice". In the Younger Futhark, it is called íss in Old Norse. As a rune of the Anglo-Saxon futhorc, it is called is.
Gothic letter is 𐌹 i, named eis.
The rune is recorded in all three
 English Translation:
Anglo-Saxon ᛁ Is byþ oferceald, ungemetum slidor,
glisnaþ glæshluttur gimmum gelicust,
flor forste geƿoruht, fæger ansyne.
Ice is very cold and immeasurably slippery;
it glistens as clear as glass and most like to gems;
it is a floor wrought by the frost, fair to look upon.
Old Icelandic ᛁ Íss er árbörkr
ok unnar þak
ok feigra manna fár.
Ice is bark of rivers
and roof of the wave
and destruction of the doomed.
Old Norwegian ᛁ Ís kǫllum brú bræiða;
blindan þarf at læiða.
Ice is called the broad bridge;
the blind man must be led.