The gloss was hardly legible and Christopher Tolkien read "to enjoy" in Ety/400, but the meaning "to employ", much more probable (Cf. iuith ), was later confirmed in VT/45:23
Noldorin
iuith
noun. use
iuith
noun. use
iuitha-
verb. to employ, to use
iuitha-
verb. to employ
A verb in The Etymologies of the 1930s glossed “employ” under the root ᴹ√YUK “employ, use” (Ety/YUK; EtyAC/YUK). In The Etymologies as published in The Lost Road Christopher Tolkien indicated the gloss was “?enjoy” (LR/400), but Carl Hostetter and Patrick Wynne corrected this to “employ” in their Addenda and Corrigenda to the Etymologies (VT45/23).
A noun in The Etymologies of the 1930s glossed “use” under the root ᴹ√YUK “employ, use” (Ety/YUK).