Sobriquet of Beleg translated as “Strongbow” (S/200), a combination cû “bow” and thalion “strong; dauntless man” (SA/cú, thalion).
Sindarin
Cúthalion
noun. strong bow
cúthalion
masculine name. Strongbow
Elements
Word Gloss cû “bow, bow; [N.] arch, crescent; [G.] waxing or waning moon” thalion “strong, dauntless, strong, dauntless; [N.] hero, dauntless man; [ᴱN.] warrior”
cû (“bow”) + thalion (“strong, dauntless one”) > thala (“strong, dauntless”) + ion (traditional male ending)