Nigr
Nigr is a term that most often appears not as a standalone concept but as a fragment within longer words or as a linguistic root. Etymology: it derives from Latin niger meaning black, and in modern use the form nigr- serves as a combining form in many scientific and descriptive terms. In biology and taxonomy, the root is found in compound terms describing dark coloration, and in chemistry and materials science it can appear as a root in compound names, depending on language conventions.
Usage and variants: The root can appear in several inflected forms in different languages: nigra, nigri, nigrum,
Related terms: Niger (the country and the historical region), niger/nigra as adjectives in Latin and Romance
Note: The use of 'Nigr' should be distinguished from a racial slur; it is not used as