The Quenya word for “one” used when counting: min, atta, neldë, etc. This is contrasted with er “one, alone” for an isolated thing (VT48/6).
Conceptual Development: This use of min “one” appeared regularly in Tolkien’s writings, dating back to the Early Qenya Grammar (EQG) of the 1920s (PE14/49, 82, 84), but there were occasional variations. The Qenya Lexicon of the 1910s instead had ᴱQ. mir “one” (QL/61), and The Etymologies of the 1930s had a variant form mine derived from the root ᴹ√MINI “stand alone, stick out” (Ety/MINI).
Neo-Quenya: For purposes of Neo-Quenya, I would also use min adverbially to mean “first”, as in carnes sa min “he/she did it first”, either before anyone else did so, or before he/she did anything else. Tolkien use min this way in the Early Qenya Grammar of the 1920s. See [ᴱQ.] minyallumë “firstly” for further discussion. For adjectival or pronominal “first” I would use minya.
minë numeral "one", also min (MINI, VT45:34)