Danish fast

← German fast (derived)

← Proto-Germanic *fastuz (derived)

← Old Norse fastr (derived)

→ Danish fastboende (compound)

→ Danish vejrfast (affix)

→ Danish ildfast (affix)

→ Danish fastnøgle (affix)

→ Danish fasthed (affix)

→ Danish fastsætte (affix)

→ Danish brofast (affix)