| Full diacritics: κρουστέον | Medium diacritics: κρουστέον | Low diacritics: κρουστέον | Capitals: ΚΡΟΥΣΤΕΟΝ |
| Transliteration A: kroustéon | Transliteration B: krousteon | Transliteration C: krousteon | Beta Code: krouste/on |
A one must knock at, τηνδεδί (sc. θύραν) Ar.Ec.989.
