An unglossed root in the Qenya Lexicon of the 1910s with derivatives ᴱQ. mark “ripe juice, sap, ooze, moisture” and ᴱQ. marqa “oozy, juicy, moist” (QL/63); Tolkien marked the root with a “?”. There are no signs of this root in Tolkien’s later writing.
Early Primitive Elvish
mṛðṛ
root. grind
hotho
root. bind
m(b)ṇðṇ
root. bind
m(b)ṛtṛ
root. chance
miri
root. smile
mṛtyṛ
root. smile
mṛřṛ
root. grind
pḷqḷ
root. *juice
mṛkṛ
root. *juice
A root in the Qenya Lexicon of the 1910s given as ᴱ√MṚŘṚ with derivatives like ᴱQ. mar (mard-) “grit, course grain or powder”, ᴱQ. mard- “grind, pulverize” and ᴱQ. marma “sand” (QL/63). In a list of roots at the end of the M-section, ᴱ√MṚÐṚ was gloss “grind” (QL/63). Early in the M-section Tolkien had the root {ᴱ√MAŘA² >>} ᴱ√MARA as a dialectical variation or byform of ᴱ√MṚŘṚ, with the derivative ᴱQ. marilla “pearl” (QL/59); see that entry for details. The Gnomish cognate of ᴱQ. marilla was given as G. brithla “pearl” in the contemporaneous Gnomish Lexicon (GL/24), and this Gnomish word probably a derivative of ᴱ√MṚÐṚ. In that document these words served as the base for ᴱQ. Silmaril and its Gnomish equivalent G. Silubrilt (GL/67). There are no signs of this root in Tolkien’s later writing, and Q. Silmaril was given different etymologies later on.