What is the correct spelling of honorable in Irish English ?
King's Inns:  The full title retains the historical spelling variant "honorable" in preference to the contemporary Hiberno-English spelling of "honourable". Hiberno-English: Hiberno‐English (from Latin "Hibernia": "Ireland") or Irish English is the set of English dialects natively written and spoken within the island of Ireland (including both the Republic of Ireland and Northern Ireland).
honourable