√TUR root. “dominate, master, conquer; power [over others], mastery (legitimate or illegitimate), control (of other wills); strong, mighty in power”
This root was connected to strength, victory and power for most of Tolkien’s life. It first appeared as ᴱ√TURU “am strong” the Qenya Lexicon of the 1910s with derivatives like ᴱQ. túre “might, strength, power”, ᴱQ. túrin “kingdom”, and ᴱQ. turu- “can, to be able” (QL/95). In the contemporaneous Gnomish Lexicon it had derivatives like G. tûr “king” and G. turm “authority, rule; strength” (GL/72).
In The Etymologies of the 1930s it appeared as ᴹ√TUR “power, control, mastery, victory” with derivatives like ᴹQ. taura/N. taur “mighty”, ᴹQ. tur-/N. tortha- “wield, control”, and ᴹQ. túre/N. tûr “mastery, victory” (Ety/TUR). The root √TUR was mentioned regularly in Tolkien’s later writings with glosses like “dominate, master, conquer” (PE17/104), “power” (PE17/113), “strong, mighty (in power)” (PE17/115), and “power of domination or dominion, control of other wills, legitimate or illegitimate mastery” (PE22/151).
References ✧ PE17/104, 113, 115, 188; PE22/151, 159; SA/tur; VT39/10
ᴹ√TUR root. “power, control, mastery, victory”
References ✧ Ety/ID, TĀ, TÁWAR, TUR
ᴱ√TURU root. “am strong”
References ✧ GL/71; LT1A/Meril-i-Turinqi, Tuor, Turuhalmë; QL/95