diutissime

• (Classical Latin) IPA^(key): /di.uːˈtis.si.meː/, [d̪iuːˈt̪ɪs̠ːɪmeː]
• (modern Italianate Ecclesiastical) IPA^(key): /di.uˈtis.si.me/, [d̪iuˈt̪isːime]

diūtissimē

1. superlative degree of diū

• diutissime in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.