Earlier name of Caradhras “Redhorn” in Lord of the Rings drafts from the 1940s (RS/433). Its elements were reversed, with rhas “horn” first and caran “red” second.
Noldorin
caradras
place name. Redhorn
din-caradras
place name. *Pass of Caradhras
rhascaron
place name. Redhorn
A name appearing in The Etymologies from the 1930s, a combination of dîn “pass” and the mountain-name Caradras (Ety/DEN), apparentlly referring to that mountain’s pass.