Sui generis
Sui generis (; ) is a Latin phrase that means "of its (his, her, their) own kind; in a class by itself; unique."
Swedes (Germanic tribe)
Most scholars agree that "Suiones" and the attested Germanic forms of the name derive from the same Proto-Indo-European reflexive pronominal root, , as the Latin "suus". The word must have meant "one's own (tribesmen)". In modern Scandinavian, the same root appears in words such as "svåger" (brother-in-law) and "svägerska" (sister-in-law). The same root and original meaning is found in the ethnonym of the Germanic tribe Suebi, preserved to this day in the name "Schwaben" (Swabia). The details of the phonetic development vary between different proposals.