Danish hul

← German Höhle (cognate)

← English hole (cognate)

← Proto-Germanic *hulą (inherited)

← Proto-Germanic *hulaz (inherited)

← Proto-Germanic *hulaz (inherited)

← Old Norse hol (derived)

← Old Norse holr (derived)

→ Danish røvhul (compound)

→ Danish hulhed (affix)

→ Danish fissehul (affix)