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
Sindarin
esten(t)
adjective. short
thent
adjective. short
then
adjective. short
thenn
adjective. short
thent
adjective. short
thenfalas
place name. Short Beach
estent
adjective. (very?) short
thent
short
thent (pl. thint), also ?estent (pl. estint).
thent
short
(pl. thint), also ?estent (pl. estint).
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
thinnas
shortness
thinnas (also used for a “breve”, a mark indicating that a vowel is short). Verb
thennas
noun. shortness
thinnas
noun. shortness
megil
noun. sword
megil
noun. sword
_ n. _sword. i·arben na megil and 'The Knight of the Long Sword'.
naug
noun/adjective. stunted, dwarf
naug
noun/adjective. a Dwarf
dolt
knob
(round knob) dolt (i dholt) (boss), pl. dylt (i nylt)
dolt
knob
(i dholt) (boss), pl. *dylt*** (i nylt**)
hathel
broadsword blade
(i chathel, o chathel) (axe blade), pl. hethil (i chethil)
lang
sword
(cutlass), pl. leng.
magol
sword
(i vagol), analogical pl. megyl (i megyl), coll. pl. maglath (though analogical ?magolath may also be possible). In ”Noldorin”, this was the native word for ”sword” (derived from primitive makla, as is Quenya macil); it is unclear whether Tolkien definitely replaced it with megil when he turned ”Noldorin” into Sindarin, or whether both words coexist in the language.
megil
sword
1) megil (i vegil), no distinct pl. form except with article (i megil). This is a borrowing from Quenya macil (VT45:32). 2) magol (i vagol), analogical pl. megyl (i megyl), coll. pl. maglath (though analogical ?magolath may also be possible). In ”Noldorin”, this was the native word for ”sword” (derived from primitive makla, as is Quenya macil); it is unclear whether Tolkien definitely replaced it with megil when he turned ”Noldorin” into Sindarin, or whether both words coexist in the language. 3) lang (cutlass), pl. leng.
megil
sword
(i vegil), no distinct pl. form except with article (i megil). This is a borrowing from Quenya macil (VT45:32).
naug
stunted
naug (dwarfed), pl. #noeg. Note: the word is also used as a noun ”dwarf”.
A name translated “short beach” in contrast to Anfalas “long beach” (VT42/15), a combination of thent “short” and falas “beach”.