Early Quenya
mard(a)-
verb. to grind, pulverize
mar
noun. grit, coarse grain or powder
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!
A verb appearing as ᴱQ. mard- “grind, pulverize” in the Qenya Lexicon of the 1910s under the early root ᴱ√MṚÐṚ (QL/63), where syllabic *ṛ* became *ar* as usual before a dental consonant (PE12/11). In a nearby comparison list of roots it was given as marda- “grind” (QL/63/11).