A noun for “copper” in notes from the late 1960s based on the root √(u)rus (VT41/10).
Conceptual Development: The Gnomish Lexicon of the 1910s had G. tăm “copper” (GL/69), clearly the cognate of ᴱQ. tambe “copper, bronze” under the early root ᴱ√TAMA “beat; smelt, forge” in the contemporaneous Qenya Lexicon (QL/88).
An adjectival form of rust “copper” in notes from the late 1960s (VT41/10).
Conceptual Development: The Gnomish Lexicon of the 1910s had G. tambin “of copper” and G. tambrin “like copper”, both based on G. tăm “copper” (GL/69).