caran (“red”) + ras (“horn, mountain peak”) Dhr is < n-r in secondary contact; the original form of ras is probably rass with the final s dropped at the end of a polysyllable [HKF].
Sindarin
caradhras
place name. Redhorn
Caradhras
noun. red horn
Caradhras
'Redhorn'
topon. 'Redhorn', a great mountain tapering upwards. Dw. Baraz-inbar.
caran-rass
place name. Redhorn
The archaic form of Caradhras; see that entry for further discussion.
Caradhras
Caradhras
Caradhras
Redhorn
The name is Sindarin and means Redhorn. It is composed of caran "red" and ras "horn". As a compound, the contact of n next to r presents a phenomenon similar to prestanneth: Caran-ras is assimilated to Caradhras.
Barazinbar (or also Baraz) is the literal Khuzdul translation of "Redhorn".
Sindarin name of a peak in the Misty Mountains translated “Redhorn”, itself a translation of Kh. Barazinbar of the same meaning (LotR/283). This name is a combination of caran “red” and rass “horn”, with the dh appearing because [[s|[nr] became [ðr]]] in the phonological history of Sindarin (LotR/1113, PE17/36).
Conceptual Development: In Lord of the Rings drafts from the 1940s, Tolkien first considered and rejected the names N. Bliscarn and N. Carnbeleg before settling on N. Taragaer “Ruddyhorn” (RS/419, 433), with Taragaer also appearing in The Etymologies (Ety/TARÁK). In these early drafts, Tolkien also considered the names N. Caradras and Rhascaron (RS/433), and he eventually switched to Caradras >> Caradhras (TI/166), keeping the final name thereafter.