Where does “frost-nail” come from?

frost-nail (English) comes from English nail, from Middle English nail, from Old English næġl, from Proto-West Germanic nagl, from Proto-Germanic naglaz, from Proto-Indo-European h₃nogʰ- — claw, nail; nail.

frost-nail (English): A nail with a sharp head, driven into a horseshoe...

Definitions

  1. A nail with a sharp head, driven into a horseshoe...

Ancestry of “frost-nail”, step by step

frost-nail traces back through two separate lines of ancestry.

via English nail

StepLanguageWordMeaning
1EnglishnailThe thin, horny plate at the ends of fingers and...
2Middle EnglishnailAlternative form of nayl
3Old Englishnæġlnail
4Proto-West Germanicnaglnail; nail or peg used for fastening
5Proto-Germanicnaglaznail; nail or peg used for fastening
6Proto-Indo-Europeanh₃nogʰ-claw, nail; nail

via English Frost

StepLanguageWordMeaning
1EnglishFrostA cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing
2Middle EnglishfrostCold, freezing, or frosty weather; weather that...
3Old Englishfrostproduced by metathesis
4Proto-Indo-Europeanprustósfrost
Every word from Proto-Indo-European h₃nogʰ-Every word from Proto-Germanic naglazEvery word from Proto-West Germanic nagl