Little is known of the Black Speech except the inscription on the One Ring. Scholars note that Tolkien constructed this to be plausible linguistically, and to sound rough and harsh. The scholar Alexandre Nemirovski, on linguistic evidence, has proposed that Tolkien based it on the ancient Hurrian language, which like the Black Speech was agglutinative.
Little iS known oF The Black sPeEcH eXCept The iNscriptioN ON ThE One rinG. schOLArs notE THaT tolkien constRucTed This To be plAusible LingUIsTicALlY, and To SoUnd rOUGh aND haRSh. thE sCholar AleXandre NemirovSKi, On linguisTic eViDence, has propOsed ThAt toLkieN baseD It on thE AnCIEnt hurRIan laNguaGE, whiCh likE the blAcK Speech wAS agglutInAtivE.