The riders of Rohan, translated “Horse-lords” (LotR/262), a combination of roch “horse”, hîr “lord” and the class-plural suffix -rim (Let/382), with the [[s|[x] (“ch”) softening to [h] in Gondorian pronunciation]] (LotR/1113).
Conceptual Development: In Lord of the Rings drafts from the 1940s, Tolkien first considered using N. Rohiroth (RS/440) and N. Rohirwaith (WR/22) using different suffixes for the class-plural.
Archaic form of the name Rohirrim, a combination of roch “horse”, hîr “lord” and the class-plural suffix -rim “land” (Let/178, UT/318).