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.
Cisgender
"Cisgender" has its origin in the Latin-derived prefix "cis-", meaning "on this side of", which means the opposite of "trans-", meaning "across from" or "on the other side of". This usage can be seen in the cis–trans distinction in chemistry, the cis–trans or complementation test in genetics, in Ciscaucasia (from the Russian perspective), in the ancient Roman term Cisalpine Gaul (i.e., "Gaul on this side of the Alps"), Ciskei and Transkei (separated by the Kei River), and more recently, Cisjordan, as distinguished from Transjordan. In the case of gender, "cis-" describes the alignment of gender identity with assigned sex.