ᴺS. [G.] mast n. “fodder, feed, ⚠️food, nourishment” (Category: Pasture)
A noun appearing as G. mast “feed, food, nourishment; fodder” in the Gnomish Lexicon (GL/56). Its etymology is unclear; it might be derived from the early root ᴱ√MATA “eat” or from ᴱ√M(B)ASA “cook, bake”.
Neo-Sindarin: This word can easily be adapted as Neo-Sindarin ᴺS. mast based on ancient √MAT “eat” + noun suffixes ✶-dā or ✶-ta, since d + t or t + t from suffixion resulted in st in Sindarin phonology. I would limit this word to animal feed or fodder, and would use ᴺS. math for “food” in general.
Reference ✧ GL/56 ✧ “feed, food, nourishment; fodder”