A root in The Etymologies of the 1930s glossed “stalk, stem, leg” with derivatives like ᴹQ. telko “leg” and N. telch “stem” (Ety/TÉLEK). Tolkien’s continuing use of Q. telco for “leg” or “stem (of a tengwa symbol)” indicates the ongoing validity of this root (PE22/51; PE17/122; LotR/1118). In earlier writings, Tolkien first gave ᴱQ. pelko “leg” < ᴱ√PELE (QL/73), but ᴱQ. telko “stem” appeared in Qenya Declensions from the late 1920s (PE16/113), and both pelko and telko appeared in declensions from early 1930s (PE21/48, 53) before Tolkien settled more firmly on telko in the mid-1930s, as noted above.
Middle Primitive Elvish
stal
root. steep
stalga
adjective. stalwart, steady, firm
stalag
root. *stalwart, steady, firm
stalrā
adjective. steep, falling steeply (of river)
stalgondō
noun. hero, dauntless man
telek
root. stalk, stem, leg
kalrondō
noun. hero
bel
root. strong
parkā
adjective. dry
A root in The Etymologies of the 1930s glossed “steep” with derivatives like Ilk. thall “steep, falling steeply (of river)” and Ilk. thalos “torrent”, the latter used for the river name Ilk. Thalos (Ety/STAL). Tolkien continued to use the name S. Thalos in later versions of The Silmarillion, but the name was translated nowhere else, making its continued connection to the 1930s root uncertain.