Latin Etymology From laedō + -tiō. Pronunciation (Classical Latin) IPA(key): /ˈlae̯.si.oː/, [ˈɫ̪äe̯s̠ioː] (modern Italianate Ecclesiastical) IPA(key): /ˈle.si.o/, [ˈlɛːs̬io] Noun laesiō f (genitive laesiōnis); third declension hurt, harm, injury personal attack (in oratory) Declension Third-declension noun.More information singular, plural ... singular plural nominative laesiō laesiōnēs genitive laesiōnis laesiōnum dative laesiōnī laesiōnibus accusative laesiōnem laesiōnēs ablative laesiōne laesiōnibus vocative laesiō laesiōnēs Close Descendants Neapolitan: lesone Old Galician-Portuguese: Galician: aleixón Portuguese: aleijão Old Spanish: lisión Borrowings: → Catalan: lesió → Czech: léze → English: lesion → Old French: lesion → French: lésion → Galician: lesión → German: Läsion → Italian: lesione → Portuguese: lesão → Romanian: leziune → Slovak: lézia → Sicilian: lisiuni → Spanish: lesión References Walther von Wartburg (1928–2002) “laesio”, in Französisches Etymologisches Wörterbuch, volume 5: J L, page 129 Further reading “laesio”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press “laesio”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers laesio in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.Wikiwand - on Seamless Wikipedia browsing. On steroids.