The word estent was a longer form of thent “short” < ✶stentā (PE17/141; WJ/311), where the initial s became syllabic and developed into *es-*. In one place it had a variant esten as part of a paradigm where the word for “short” was thenn (PE17/185); see the entry on S. thent for discussion.
Sindarin
thent
adjective. short
estent
adjective. short
esten
adjective. short
then
adjective. short
thenn
adjective. short
thent
adjective. short
thenfalas
place name. Short Beach
estent
adjective. (very?) short
The slash sign in minlamad thent/estent might indicate either variant forms of an adjective, or a sequence of two short verse units, possibly of alliterating half-lines, see Tolkien's Legendarium p. 122
nuitha-
verb. to stunt, prevent from coming to completion, stop short, not allow to continue
ann-thennath
noun. a verse mode, lit. "long-shorts" (alternance of long and short vowels, or rather alternance of long and short verse units, possibly of masculine and feminine rhymes)
The word is not translated by Tolkien. Refer to Tolkien's Legendarium p. 115 for a discussion of its probable meaning
dírnaith
noun. a military wedge-formation launched over a short distance against an enemy massing but not yet arrayed, or against a defensive formation on open ground
nuitha-
verb. to stunt, to prevent from coming to completion, stop short, not allow to continue
thent
short
thent (pl. thint), also ?estent (pl. estint).
thent
short
(pl. thint), also ?estent (pl. estint).
nogen
noun. boy, lad, urchin; *(orig.) short (of persons)
nuitha
stop short
nuitha- (i nuitha, in nuithar) (prevent from coming to completion; stunt; not allow to continue) (WJ:413)
nuitha
stop short
nuitha- (i nuitha, in nuithar) (prevent from coming to completion; stunt; not allow to continue) (WJ:413).
nuitha
stop short
(i nuitha, in nuithar) (prevent from coming to completion; stunt; not allow to continue) (WJ:413)
nuitha
stop short
(i nuitha, in nuithar) (prevent from coming to completion; stunt; not allow to continue) (WJ:413).
thinnas
shortness
(also used for a “breve”, a mark indicating that a vowel is short). Verb
The most common Sindarin word for “short”. In The Etymologies of the 1930s it was N. thent “short” derived from ᴹ√STINTĀ of the same meaning where the e was the result of *a*-affection (Ety/STINTĀ). In 1957 Notes on Names (NN), it was thent < ✶stentā where it was contrasted with thenn “grey-elf” < ✶thindā (PE17/141).
In 1957 Quenya Notes (QN) Tolkien instead had thenn “short” < ✶stenna, but this was part of a (brief?) paradigm where medial *nt* did not become *nn* in Sindarin (PE17/185). As such thent could no longer be the basis for Ann-thennath “✱Long-shorts” (LotR/193), name of a form of Elvish verse from The Lord of the Rings, and thus a new etymology was required:
> Since nt &c. no longer are held to yield nn &c., the word for “short” should be ✶stenna √STEN- “cut short, limit, confine, cramp”. Q thenna/senna. S thenn, esten (PE17/185).
However, this word appeared again as thent in the name of another style of Elvish alliterative verse: Minlamad Thent “✱First-echoing Short” in the draft introduction to the tale Narn i Chîn Húrin (WJ/311).
Neo-Sindarin: Since I prefer to assume medial nt did become nn, I would use thent “short” for purposes of Neo-Sindarin.