A noun for “jaw” The Etymologies of the 1930s derived from primitive ᴹ✶nakma under the root ᴹ√NAK “bite” (Ety/NAK). It was possibly displaced by anca “jaw, jaws”, which was also introduced in The Etymologies of the 1930s, but continued to appear in later documents included The Lord of the Rings Appendix E (LotR/1123). However, it might be that nangwa refers to a single “jaw” (upper or lower), while anca refers collectively to both “jaws”.
Qenya
anga
noun. iron
angainor
proper name. Angainor
angaina
adjective. of iron
angamanda
place name. Iron Prison, Hells of Iron
nangwa
noun. jaw
ehte
noun. spear
nwalme
noun. torment
An adjectival form of ᴹQ. anga “iron” from The Etymologies of the 1930s (Ety/ANGĀ), also mentioned in the Qenya Lexicon and Poetic and Mythological Words of Eldarissa of the 1910s (QL/31; PME/31).