-inbar
From Tolkien Gateway
inbar is an element from the Khuzdul name Barazinbar and is translated as "horn".
The actual word is not known, but perhaps it was *nibar or *mibar since words of three radical vowels such this (look below) don't begin with a vowel.
Etymology
The word derives from the Root M-B-R[1] but it is possible that it is perhaps a mistype for *N-B-R.[2]