Early Quenya
tamin
noun. forge
tamíne
noun/adverb. today
et(t)amíne
noun. today
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
A word appearing as ᴱQ. tamin or tamilla “forge” in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s under the early root ᴱ√TAMA “beat; smelt, forge” (QL/88; PME/88).
Neo-Quenya: The root √TAM was glossed “construct” in Tolkien’s later writings, and its derivative tamo was often used for “[metal] smith”, so I think ᴺQ. tamin “forge” can be retained as a derivative based on the later meaning of the root.