Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!

Gnomish

mang

noun. butter

A word appearing as G. mang “butter” in the Gnomish Lexicon of the 1910s (GL/28), clearly related to ᴱQ. manya “butter” and thus derived from the early root ᴱ√MṆGṆ (QL/62).

Neo-Sindarin: I’d retain ᴺS. mang “butter” for purposes of Neo-Sindarin from a Neo-Root ᴺ√MANGYA, where ngy became ng in (Old) Sindarin (PE19/23).