anga noun "iron", also name of tengwa #7 (ANGĀ, Appendix E, SA, PM:347, LT1:249, 268). In the pre-classical Tengwar system presupposed in the Etymologies, anga was the name of letter #19, which tengwa Tolkien would later call noldo instead (VT45:6). Masc. names Angamaitë "Iron-handed" (Letters:347), Angaráto "Iron-champion", Sindarin Angrod(SA:ar(a) ). See also Angamando, tornanga and cf. Angainor as the name of the chain with which Melkor was bound (Silm)
Quenya
anga
noun. iron
anga
iron
angaina
of iron
angaina adj. "of iron" (ANGĀ)
Ancalë
radiant one
Ancalë noun("k") "radiant one" or "radiance" = Sun (KAL, VT45:5, 18). In the pre-classical Tengwar system presupposed in the Etymologies, Ancalë was the name of letter #7 (VT45:18), which tengwa Tolkien would later call anga instead changing its Quenya value from nc to ng. - Another source (VT45:36) cites the word for "radiance, Sun" as incalë ("k"), but the form Ancalë is probably to be preferred.
erë
iron
erë, eren noun "iron" or "steel"; Eremandu variant of Angamandu (Angband) (LT1:252; "iron" should be anga in LotR-style Quenya, but erë, eren may still be used for "steel". See also yaisa.)
This was the Quenya word for “iron” for much of Tolkien’s life, derived from primitive ✶angā of the same meaning (PM/347).
Conceptual Development: ᴱQ. anga “iron” dates back to the Qenya Lexicon of the 1910s (QL/31). In this document it had some competing alternatives: ᴱQ. yere(n) “pig iron” under the early root ᴱ√DYEÐE (QL/105) and {ᴱQ. tongo “iron”} under the early root ᴱ√TOŊO “to hammer” (QL/94), though this second form was deleted. Neither of these alternatives survived in Tolkien’s later writings, and The Etymologies of the 1930s had only ᴹQ. anga “iron” under the root ᴹ√ANGĀ (Ety/ANGĀ). Tolkien stuck with this form thereafter.