There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
mechor
noun. gore
mais Archaic
noun. gore
An archaic noun for “gore” in the Gnomish Lexicon of the 1910s derived from primitive ᴱ✶meχse via the vocalization of the spirant χ before s: eχ > ei > ai (GL/56). It is clearly related to the early root ᴱ√MEHE “ooze‽” from the contemporaneous Qenya Lexicon that was likewise the basis for “gore” words (QL/60).
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
A noun appearing as G. mechor “gore” in the Gnomish Lexicon of the 1910s (GL/56), clearly related to the early root ᴱ√MEHE “ooze‽” from the contemporaneous Qenya Lexicon that was likewise the basis for “gore” words (QL/60).
Neo-Sindarin: I would retain this word as ᴺS. mechor “gore” for purposes of Neo-Sindarin, derived from a Neo-Root ᴺ√MEKH of similar meaning, from primitive ✱mekhār or ✱mekhrē.