nahta- (1) verb "slay" (nahtan "I slay"). Possible variant #nehta- see #nehtar. Passive participle nahtana in the phrase nahtana ló Túrin *"slain by Turin". (VT49:24)
Quenya
nahta-
verb. to slay; to hurt, injure, wound, to slay; [Q.] to hurt, injure, wound; [ᴱQ.] slay cruelly
nahta-
slay
nahta-
verb. slay
nahta-
verb. hurt
hurt, injure, wound
nahta-
verb. to confine, oppress
nahta
bite
nahta (2) noun "a bite" (NAK)
nahta
cardinal. eighteen
nahta (3) cardinal "eighteen" (PE14:17)
nehta-
verb. to slay
#nehta- (2) vb. "to slay" if such a stem can be isolated from #nehtar (see below). The (variant?) form nahta- is given in VT49:24.
nahte
noun. wounding, wound
nehtar
noun. slayer
An element in Morinehtar “Darkness-slayer”, a name of one of the Blue Wizards (PM/384). It seems to be an agental form of nahta- “to slay”, but the reason why the vowel is e is unclear.
#nac-
verb. hew, cut
#nac- ("k") vb. "hew, cut" (nacin "I hew, cut", VT49:24) or "bite" (NAK); compare nahta #2.
mala-
verb. hurt, pain
mala- vb. "hurt, pain" (QL:63)
nehtar
slayer
#nehtar noun "slayer", isolated from Morinehtar "Darkness-slayer" (PM:384, 385). It may be that a verbal stem #nehta- "to slay, kill" can also be isolated from this noun, though the attested form is actually nahta- (a possible example of A/E variation).
pelecta-
verb. hew
pelecta- ("k")vb. "hew" (this "Qenya" word may be adapted to LotR-style Quenya as *pelehta-)(LT2:346)
toloquë
cardinal. eighteen
toloquë ("kw") cardinal "eighteen" (VT48:21). If "tolokwe" is seen as a Common Eldarin form, it is possible that the Quenya word should be *tolquë instead, but the editor assumes that "tolokwe" is merely an unusual spelling of Quenya toloquë (since "tolokwe" is listed together with forms that are definitely Quenya).
tolquë Reconstructed
cardinal. eighteen
A verb for “slay” based on the root √NDAK (PE22/156). Conjugations from 1964 (PE17/77) and 1969 (PE22/156-157, 159, 164) indicate it was a half-strong verb with past tense nacante, though it also had an (archaic) strong past †nance (PE22/159).
Conceptual Development: This verb dates back to the Early Qenya Phonology of the 1920s where Tolkien had ᴱQ. nahta- “slay cruelly” based on primitive ᴱ✶ndagta- from the early root ᴱ√DAGA (PE14/66). In The Etymologies of the 1930s this root became ᴹ√NDAK “slay”, but this verb was not mentioned (Ety/NDAK). The verb ᴹQ. nahta- “slay” was mentioned again in the Quenya Verbal System (QVS) from 1948, but there its root shifted back to √NDAG “slay” (PE22/102, 114-115).
In 1959 revisions to the Outline of Phonology (OP2), the root again became √NDAK “hew, slay”, but Q. nahta- was derived from an unrelated root √SNAG “wound” and was itself glossed “hurt, injure, wound” (PE19/91). A conjugation for nahta- appeared in notes from 1964, but without glosses (PE17/77). The verb nahta- appeared in quite a few examples in Late Notes on Verb Structure (LVS) from 1969, and in those notes the gloss was again “slay” and its root was again √NDAK “hew” (PE22/156).
Neo-Quenya: For purposes of Neo-Quenya, I’d stick to the meaning “to slay” for nahta-, and for “wound” I’d use [ᴹQ.] harna-.