ᴱN. garob n. “robe” (Category: Overcoat)
A word appearing as G. garob “cloak, outer garment” in the Gnomish Lexicon of the 1910s with a Qenya cognate ᴱQ. karàpe and a plural form garobin (GL/37). Tolkien initially said the older and more correct form of the plural was garbin, but he deleted this. Since initial voiced stops were unvoiced in Early Qenya (PE12/17) and a often became o in unstressed final syllables in Gnomish, the primitive form was probably *gárape. The form ᴱN. garob “rope” reappeared in Early Noldorin Word-lists of the 1920s (PE13/144). It is possible that N. carab “hat” from the 1940s was related conceptually (WJ/187).
Neo-Sindarin: As we have no Sindarin words for “robe” in Tolkien’s later writings, I’d retain ᴺS. garob “robe, outer garment” from primitive *gárāpē, a variant of the primitive form of N. carab “hat”, meaning “outer garment” as opposed to “upper garment” = *karapē “hat”.
Reference ✧ PE13/144 ✧ “robe”