Sui generis
A similar case that led to the use of the label "sui generis" is the relationship of New Caledonia relative to France, because the legal status of New Caledonia can aptly be said to lie somewhere between a French overseas collectivity and a sovereign nation. Although other examples of such status for other dependent or disputed territories may exist, this arrangement is unique within the French realm.
Gender
The modern English word "gender" comes from the Middle English "gender", "gendre", a loanword from Anglo-Norman and Middle French "gendre". This, in turn, came from Latin "genus". Both words mean "kind", "type", or "sort". They derive ultimately from a widely attested Proto-Indo-European (PIE) root "gn-",
which is also the source of "kin", "kind", "king", and many other English words. It appears in Modern French in the word "genre" (type, kind, also "") and is related to the Greek root "gen-" (to produce), appearing in "gene", "genesis", and "oxygen". The Oxford Etymological Dictionary of the English Language of 1882 defined "gender" as "kind, breed, sex", derived from the Latin ablative case of "genus", like "genere natus", which refers to birth. The first edition of the Oxford English Dictionary (OED1, Volume 4, 1900) notes the original meaning of "gender" as "kind" had already become obsolete.