Old High German frost

← Old English frost (cognate)

← Proto-Germanic *frustą (inherited)

← Proto-Germanic *frustaz (mention)

← Old Norse frost (cognate)

→ Old English forst (cognate)

→ Cimbrian bròst (inherited)

→ German Frost (inherited)

→ Old High German gruntfrost (compound)

→ Luxembourgish Frascht (inherited)

→ Old Norse frost (mention)