An unglossed root in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. píqa “bitter” and ᴱQ. piqis(se) “grief” (QL/74). It also had derivatives in the contemporaneous Gnomish Lexicon such as G. pigwa “bitter” and G. piglin “urine” (GL/64). Later words for “bitter” were derived from the root ᴹ√SAG.
Early Primitive Elvish
moko
root. hate
piqi
root. *bitter
A root in the Qenya Lexicon of the 1910s glossed “hate” with derivatives like ᴱQ. mok-/G. mog- “hate” and ᴱQ. Kosomoko/G. Gothmog “Strife-and-hatred” (QL/62; GL/57). In Tolkien’s later writing, there are no signs of this root and Gothmog was given different etymologies (Ety/GOS, MBAW; LR/406).