ᴹ√LIW root. “*fish”
An unglossed root in The Etymologies of the 1930s whose derivatives had to do with fish, such as ᴹQ. lingwe and N. lhim “fish” (Ety/LIW). It is probably a later iteration of ᴱ√IWI from the Qenya Lexicon of the 1910s that likewise was the basis for fish-words from this period, such as ᴱQ. ingwe and G. ing (QL/43; GL/51). The root ᴹ√IW also appeared in The Etymologies (EtyAC/IW), but was unglossed and had no derivatives, so it isn’t clear what Tolkien intended this root to mean in the 1930s, and it may well have been abandoned.
References ✧ Ety/LIW, LOK; EtyAC/LIW
ᴱ√IWI root. “*fish”
References ✧ QL/43, 97