Quenya 

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.

nehta-

verb. deprive

nehta- (3) vb. "deprive" (PE17:167)

nehta-

verb. to deprive, to deprive, *(lit.) make divided or separate [from]

A verb for “deprive” in Quenya Notes (QN) from 1957, based on the root √NEK of similar meaning (PE17/163).

Conceptual Development: The Qenya Lexicon of the 1910s had ᴱQ. oista- “bereave” under the early root ᴱ√OYO (QL/71). Likely this verb was used in the Old English sense of “bereave” = “deprive of”.

nehta

spearhead

nehta (1) noun "spearhead", isolated from nernehta, q.v.

Noldorin 

naith

noun. any formation or projection tapering to a point: a spearhead, triangle gore, wedge, narrow promontory

Noldorin [Ety/387, UT/282, RC/307] Group: SINDICT. Published by

Sindarin 

naith

noun. any formation or projection tapering to a point: a spearhead, triangle gore, wedge, narrow promontory

Sindarin [Ety/387, UT/282, RC/307] Group: SINDICT. Published by

naith

spearhead

naith (gore, wedge, point, promontory); no distinct pl. form;

neitha

deprive

(or, to wrong) #neitha- (i neitha, in neithar), isolated from Neithan ”Wronged” (as participle/derived noun)

neitha

deprive

(i neitha, in neithar), isolated from Neithan ”Wronged” (as participle/derived noun)

tadhos

noun. hawthorn

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!

Early Quenya

nehta

noun. hawthorn

Early Quenya [PE16/140] Group: Eldamo. Published by

tarasse

noun. hawthorn

Early Quenya [PME/087; QL/087; VT40/08] Group: Eldamo. Published by

Gnomish

pibinaith(ros)

noun. hawthorn

A word for “hawthorn” in the Gnomish Lexicon of the 1910s, apparently a combination of G. pibin “small berry, haw” and a variant of G. aithos “thorn bush” (GL/64). Another word of “hawthorn” in this document was G. tadhos (GL/68).

pinaithros

noun. hawthorn

tadhos

noun. hawthorn

A noun appearing as G. tadhos “hawthorn” in the Gnomish Lexicon of the 1910s, an elaboration of G. tath (tadh-) “hedge” based on the early root ᴱ√tadh- (GL/68).

Neo-Sindarin: I would retain ᴺS. tadhos “hawthorn” based on an updated Neo-Root ᴺ√TAD “enclosure”; see that entry for details.