ᴱ√SḶKḶ² root. “rich, lush”
ᴱ√SḶKḶ² “rich, lush” was variant of the root ᴱ√SṚKṚ “fat” in the Qenya Lexicon of the 1910s with derivatives ᴱQ. silk(in)a “rich, fat, glossy” and ᴱQ. silqe “gloss hair” (QL/86), possibly the same as ᴱ√SḶKḶ¹ from which “grass” words were derived (QL/84). In The Etymologies of the 1930s, ᴹ√SALAK was used exclusively of “grass” words.
References ✧ QL/84, 86