Hello,
It’s a known fact that a few words have a final double consonant, written as simple, but which true nature can be infered through metrics (they do appear double before a vowel) and linguistics,
So far, I know two cases:
- es (from *es-si, shortened to ess)
- hoc (nominative and accusative, from *hod-ce, shortened to hocc)
Do you know about other such cases?