Quenya 

sarta

steadfast, trusty, loyal

sarta adj. "steadfast, trusty, loyal" (PE17:183)

sarto

trusty follower, loyal companion (member of comitatus of a lord, or prince)

sarto noun "trusty follower, loyal companion (member of comitatus of a lord, or prince)", also satar (PE17:183)

satar

trusty follower, loyal companion (member of comitatus of a lord, or prince)

satar noun "trusty follower, loyal companion (member of comitatus of a lord, or prince)", often in form sarto (PE17:183)

sarta

adjective. steadfast, trusty, loyal

satar

noun. trusty follower, loyal companion

sarto

noun. trusty follower, loyal companion

astar

faith, loyalty (not belief)

astar noun "faith, loyalty (not belief)" (PE17:183). Not to be confused with the pl. form of asta #1.

voronwë

steadfastness, loyalty, faithfulness

voronwë noun "steadfastness, loyalty, faithfulness" (CO), also as masc. name Voronwë "the Faithful" (PM:340, BORÓN, LT1:250)

astar

noun. faith, loyalty

voronwë

noun. steadfastness, loyalty, faith(fulness)

Quenya [PE17/115; UT/305; UT/317] Group: Eldamo. Published by

sorna

steadfast

sorna (þ) adj. "steadfast" (PE17:113)

sorna

adjective. steadfast

vórima

adjective. faithful, faithful, *(lit.) able to endure; [ᴹQ.] continuous, enduring, repeated; [ᴱQ.] everlasting

Primitive elvish

sat(ar)

root. faithful, trust, loyal, rely, steadfast

Primitive elvish [PE17/145; PE17/183] Group: Eldamo. Published by

satarŏ

noun. trusty follower, loyal companion

Primitive elvish [PE17/183] Group: Eldamo. Published by

satrā

adjective. steadfast, trusty, loyal

Primitive elvish [PE17/183] Group: Eldamo. Published by

as’tāră

noun. faith, loyalty

Primitive elvish [PE17/183] Group: Eldamo. Published by

stor

root. steadfast

A root appearing Notes on Names (NN) from 1957 serving as an explanation for the element S. thorn “steadfast” in the name S. Arathorn, first appearing in a rejected page with variants √STOR and √THOR (PE17/113-114) and then later as only √THOR (PE17/113). This root may be connected to Q. torna “hard” in notes on Quenya intensive forms written between the first and second edition of The Lord of the Rings, where it was an element in Q. tornanga “hard iron”, with intensive forms aristorna, anastorna that imply derivation from √STOR (PE17/56).

Neo-Eldarin: For purposes of Neo-Eldarin, I would assume this root is √STOR to avoid conflict with ᴹ√THOR(ON), the basis for “eagle” words.

Primitive elvish [PE17/113; PE17/186; PE17/187] Group: Eldamo. Published by

thor

root. steadfast

Sindarin 

sador

adjective. steadfast, trusty, loyal

Sindarin [PE17/183] Group: Eldamo. Published by

sadron

noun. trusty follower, loyal companion

Sindarin [PE17/183; UT/153] Group: Eldamo. Published by

sadar

noun. trusty follower, loyal companion

astor

noun. loyalty

Sindarin [PE17/183] Group: Eldamo. Published by

astorad

noun. loyalty

Sindarin [PE17/183] Group: Eldamo. Published by

astor

noun. faith

_n. _faith, loyalty (not belief). Q. astar.

Sindarin [(PE17 Sindarin Corpus) PE17:183] < *_as'tāră_. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

sador

noun. faithful one

Sador was Túrin's faithful servant. The meaning of this noun is deduced from sadron , assuming that these words are in the same kind of relation as hador and hadron

Sindarin [Sador (name)] Group: SINDICT. Published by

sadron

noun. faithful one

Sindarin [UT/431] Group: SINDICT. Published by

thorn

adjective. steadfast

adj. steadfast. Q. thorna, sorna. >> Arathorn

Sindarin [(PE17 Sindarin Corpus) PE17:113] < THOR. Group: Parma Eldalamberon 17 Sindarin Corpus. Published by

thorn

adjective. steadfast

Sindarin [PE17/113] Group: Eldamo. Published by

estel

faith

: The noun estel "hope, trust, steady purpose" seems to approach the meaning of "faith" (in the religious sense) (MR:320)

estel

faith

"hope, trust, steady purpose" seems to approach the meaning of "faith" (in the religious sense) (MR:320)

him

steadfast

1) him (abiding), lenited chim, no distinct pl. form. Note that homophones include both the adjective ”cool” and the adverb ”continually”.

him

steadfast

(abiding), lenited chim, no distinct pl. form. Note that homophones include both the adjective ”cool” and the adverb ”continually”.

thalion

steadfast

thalion (dauntless, strong), pl. thelyn. Also used as a noun ”hero, dauntless man”.

thalion

steadfast

(dauntless, strong), pl. thelyn. Also used as a noun ”hero, dauntless man”.

Noldorin 

bór

masculine name. Faithful

Noldorin [Ety/BOR; LR/147; LR/291; LRI/Bor; RSI/Bor; SMI/Bor] Group: Eldamo. Published by

him

adjective. steadfast, abiding

Noldorin [Ety/364] Group: SINDICT. Published by

him

adjective. continually

Noldorin [Ety/364] Group: SINDICT. Published by

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 Noldorin

boron

adjective. steadfast

Early Noldorin [PE13/139] Group: Eldamo. Published by

bronnuin

noun. steadfastness

Early Noldorin [PE13/140] Group: Eldamo. Published by

nuimrond

noun. steadfastness

Early Noldorin [PE13/140] Group: Eldamo. Published by

nuinvrond

noun. steadfastness

thalion

masculine name. Steadfast

Early Noldorin [LBI/Thalion; PE15/61] Group: Eldamo. Published by

Early Quenya

voronda

adjective. faithful

Early Quenya [LT1A/Bronweg; QL/102] Group: Eldamo. Published by

Old Noldorin 

bronwega

masculine name. steadfastness

Old Noldorin [Ety/BORÓN; Ety/WEG; PE23/087] Group: Eldamo. Published by

Undetermined

avaltiri

collective name. Faithful

An early name of the Númenóreans who remained faithful to the Valar, later called the “Elf-friends”: Ad. Nimruzîrim, Q. Elendili. It is not clear what language this word belongs to, but it may contain the word Adûnaic word for the Valar: Avalô.

Undetermined [SD/347; SDI2/Avaltiri] Group: Eldamo. Published by