出典:Wiktionary
出典:『Wiktionary』 (2026/01/13 16:50 UTC 版)
From Latin morbus.
Uncertain. Pokorny, writing in the mid 20th-century, connected the term with Ancient Greek μαραίνω (maraínō), Old Irish meirb, Latin mortārium, and Old Norse merja. In more recent writings, de Vaan suggests a possible connection with Proto-Indo-European *mer- (“to die”), whence also morior (“to die”). The root may have been extended with a morpheme *-bʰo-, which perhaps also appears in terms such as sorbum or albus, all of which are adjectives relating to appearance. However, de Vaan notes that Proto-Indo-European formation of the shape *mor-bʰo- is unusual. De Vaan suggests a possible relation to Welsh merwydden and Ancient Greek μόρον (móron), both of which derive from a non-Indo-European substrate.
morbus m (genitive morbī); second declension
Second-declension noun.