Dionysius

From Latin Dionysius, from Ancient Greek Διονύσιος (Dionúsios).

• (UK) IPA^(key): /daɪəˈnɪzɪəs/, /daɪəˈnɪsɪəs/

Dionysius

1. An Ancient Greek male given name from Ancient Greek
   • 1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], →OCLC, Acts 17:34:

     Howbeit certain men clave unto him, and believed: among the which was Dionysius the Areopagite, and a woman named Damaris, and others with them.

From Ancient Greek Διονύσιος (Dionúsios, from Διόνῡσος (Diónūsos) +‎ -ιος (-ios)).

• (Classical) IPA^(key): /di.oˈnyː.si.us/, [d̪iɔˈnyːs̠iʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /di.oˈni.si.us/, [d̪ioˈniːs̬ius]

Dionȳsius m (genitive Dionȳsiī or Dionȳsī); second declension

1. a male given name from Ancient Greek, equivalent to English Dennis
2. tyrant of Syracuse

Second-declension noun.

¹Found in older Latin (until the Augustan Age).

• Old French: Denis
  • French: Denis (see there for further descendants)
    • ⇒ French: Denise (feminine) (see there for further descendants)
  • → Middle English: Denis
    • English: Denis, Dennis
    • ⇒ Middle English: Tenney (diminutive)
      • ⇒ English: Tennyson (surname)
  • → Old Galician-Portuguese: Dinis
    • Portuguese: Dinis, Diniz
• → Italian: Dionisio, Dionigi
• → Polish: Dionizy
• → Portuguese: Dionísio
• → Romanian: Dionisie, Dionis
• → Russian: Диони́сий (Dionísij)
• → Slovak: Dionýz
• → Spanish: Dionisio
• ⇒ Late Latin: Dionysia (feminine) (see there for further descendants)

• “Dionysius”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• Dionysius in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.