Quenya 

otso

cardinal. seven

otso cardinal "seven" (SA:sîr, OT/OTOS/OTOK, VT48:6); otsëa ordinal "seventh" (VT42:25)

otso

cardinal. 7, seven
Quenya [PE17/095.3901; PE17/096.0101; SA/sîr.021; VT47/42.0208; VT47/42.1602; VT47/42.1611; VT47/42.1708; VT48/06.1416] Group: Eldamo. Published by

otsola

week

otsola noun "week" (evidently referring to a week of seven days like our own, since otso = seven). (GL:62). Compare enquië, the Eldarin six-day week, and lemnar, a five-day week.

osco

cardinal. seven
Quenya Group: Eldamo. Published by

otos

cardinal. seven
Quenya Group: Eldamo. Published by

otsëa

ordinal. seventh
Quenya [VT42/25.1209] Group: Eldamo. Published by

otsëa

seventh

otsëa ordinal "seventh" (VT42:25). See otso.

Otselen

seven stars

Otselen noun "Seven Stars" (otso + elen), a name of the Great Bear (constellation) (OT/OTOS/OTOK)

lemnar

week

lemnar noun "week" (of five days) (LEP/LEPEN/LEPEK). Compare enquië, otsola.

Sindarin 

odo

cardinal. seven
Sindarin Group: Eldamo. Published by

odo

cardinal. seven
Sindarin [Ety/379, VT/42:25, VT/47:42, VT/48:6, PE/17:95] Group: Hiswelókë's Sindarin Dictionary. Published by

odog

cardinal. 7, seven
Sindarin [PE17/095.4001; RC/384.2304; SA/sîr.023; VT42/25.1407; VT42/25.1411; VT42/31.2212; VT47/42.0212; VT47/42.2005; VT48/06.1809] Group: Eldamo. Published by

odog

cardinal. seven
Sindarin [Ety/379, VT/42:25, VT/47:42, VT/48:6, PE/17:95] Group: Hiswelókë's Sindarin Dictionary. Published by

othui

ordinal. 7th, seventh
Sindarin [VT42/10.3412; VT42/25.2106; VT42/25.2304; VT47/42.0407] Group: Eldamo. Published by

othui

ordinal. seventh
Sindarin [VT/42:10,25] Group: Hiswelókë's Sindarin Dictionary. Published by

odothui

ordinal. seventh
Sindarin [TI/312, WR/436, VT/42:25] Group: Hiswelókë's Sindarin Dictionary. Published by

odothui

ordinal. seventh
Sindarin Group: Eldamo. Published by

ochui

ordinal. seventh
Sindarin [VT/47:42] Group: Hiswelókë's Sindarin Dictionary. Published by

ochui

ordinal. seventh
Sindarin Group: Eldamo. Published by

lefnar

noun. week (of five days)
Sindarin [VT/45:27, X/LH, X/Z] Group: Hiswelókë's Sindarin Dictionary. Published by

* odog

cardinal. seven

odog (also odo in Doriathrin Sindarin).

* odothui

seventh

odothui, othui, also ochui (VT47:42)

* odlad

noun. week
Sindarin Group: Neologism. Published by

* lefnor

week

(of five days) *lefnor, pl. lefnoer

Telerin 

otos

cardinal. 7, seven
Telerin [VT47/42.0210; VT47/42.0310; VT47/42.2003; VT48/06.1610; VT48/21.2414] Group: Eldamo. Published by

ototya

ordinal. 7th, seventh
Telerin [VT42/25.3414; VT42/31.2411; VT47/42.0405] Group: Eldamo. Published by

Adûnaic

hazad

noun. seven

A number translated as “seven”, appearing in the form hazad in the Lament of Akallabêth (SD/247), but in the form hazid in Lowdham’s Report (SD/427-8). Helge Fauskanger suggested (AL/Adûnaic) it may be related to the dwarvish word Khazâd “Dwarves”, who were divided into seven houses.

Adûnaic [SD/247.1402; SD/427.4108; SD/428.3608] Group: Eldamo. Published by

Noldorin 

odog

cardinal. seven
Noldorin [Ety/OT.008; Ety/OT.014-1] Group: Eldamo. Published by

odog

cardinal. seven
Noldorin [Ety/379, VT/42:25, VT/47:42, VT/48:6, PE/17:95] Group: Hiswelókë's Sindarin Dictionary. Published by

odotheg

place name. Seventh
Noldorin [TI/312.4301; TII/Odothui.007; WR/437.4103; WRI/Odothui.008] Group: Eldamo. Published by

odothui

place name. Seventh

@@@

Noldorin [TI/312.4304; TII/Odothui.001; WR/437.4204; WRI/Odothui.001] Group: Eldamo. Published by

lhevnar

noun. week (of five days)
Noldorin [VT/45:27, X/LH, X/Z] Group: Hiswelókë's Sindarin Dictionary. Published by

lhevnar

noun. week
Noldorin [Ety/LEP.107-2; EtyAC/LEP.015] Group: Eldamo. 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!

Primitive elvish

otoso

ordinal. 7, seven
Primitive elvish [RC/384.2211; VT42/25.1412] Group: Eldamo. Published by

otsoya

ordinal. 7th
Primitive elvish [VT42/26.1410] Group: Eldamo. Published by

otsōyā

ordinal. 7th, seventh
Primitive elvish [VT42/25.2404; VT42/26.1410] Group: Eldamo. Published by

otos/otok

root. seven
Primitive elvish [VT42/24.0907; VT47/12.1214; VT47/15.2208; VT47/16.0908; VT47/16.1810; VT47/42.0206; VT47/42.1508; VT47/42.1511; VT48/10.1012] Group: Eldamo. Published by

day

root. great
Primitive elvish [PE17/151.0201; VT42/11.2312] Group: Eldamo. Published by

day

root. great
Primitive elvish [PE17/151.0201; VT42/11.2312] Group: Eldamo. Published by

Qenya 

otso

cardinal. seven
Qenya [Ety/OT.006] Group: Eldamo. Published by

otso

cardinal. great, 7, seven
Qenya [PE14/049.1302; PE14/082.1003; PE15/32.1403; PME/071.4603; QL/071.4201] Group: Eldamo. Published by

otsola

noun. week

The Early Qenya word for a seven-day “week” is otsola. It is related to the word otso “seven”, and its Gnomish cognate ochlad is derived from ᴱ✶ot·g’lāta (GL/62). The Qenya word is probably derived from ᴱ✶otso-g’lā, where the second element is a reduced form of ᴱ✶galā > kala¹ “daytime”.

Conceptual Development: In a very early list of weekday names, this word also appeared as ᴱQ. otsan (PE14/16, 21), where its second element was probably derived from sana “day” (GL/29).

Neo-Quenya: There are a couple later words for “week” in Quenya, namely ᴹQ. lemnar and Q. enquië. These describe five- and six-day weeks, respectively and are related to ᴹQ. lempe “five” and Q. enquë “six”. The Elves used a six-day week in Tolkien’s later writing (LotR/1107). The Númenóreans added a seventh day that was adopted throughout the human kingdoms of Middle Earth, but Tolkien did not give a name to this seven-day week.

The later Quenya word for “seven” remained otso, and the later word for the six-day week is a combination of enquë “six” with the abstract-noun suffix -ië¹. Therefore, otsola might remain a valid Quenya word for a seven-day week, though a revised form !otsolë might fit later Quenya structure better.

Qenya [GL/62.1606; PE14/016.0906; PE14/016.0908; PE14/021.0102; PE14/021.0104] Group: Eldamo. Published by

otsonto

fraction. 7th, one seventh
Qenya [PE14/051.2402; PE14/051.4612; PE14/084.3303] Group: Eldamo. Published by

otsan

noun. week
Qenya Group: Eldamo. Published by

otsontya

adjective. 7th, one seventh
Qenya [PE14/051.2403; PE14/051.4407; PE14/051.4408; PE14/084.3302] Group: Eldamo. Published by

otya

ordinal. seventh
Qenya [PE14/051.0310; PE14/082.1004] Group: Eldamo. Published by

Middle Primitive Elvish

ot/otos/otok

root. seven
Middle Primitive Elvish [Ety/OT.001] Group: Eldamo. Published by

lepenar

noun. week
Middle Primitive Elvish [EtyAC/LEP.013] Group: Eldamo. Published by

Gnomish

oglad

noun. week
Gnomish Group: Eldamo. Published by

ochlad

noun. week

The Gnomish word for “week”. It is related to the word odin “seven” and derived from ᴱ✶ot·g’lāta (GL/62), though its exact phonetic development is obscure. Roman Rausch speculated (HPG/2.6) that the [tgl] somehow became [ɣl] (ʒl) and then [ɣl] > [xl] (chl).

Conceptual Development: In a very early list of weekday names, this word appeared as G. oglad (PE14/16, 21), but it was replaced by ochlad in the Gnomish Lexicon from the 1910s (GL/62).

Neo-Sindarin: There are no later words for a seven-day week in Noldorin or Sindarin. The closest we come is N. lhevnar for the Valarin five-day week, but this is inappropriate since it is based on the root ᴹ√LEPEN “five”.

The later Sindarin word for “seven” was odog from the root √OTOK. It is difficult but not impossible to produce initial och- from this root. Such a form appeared in S. ochui, a variant of othui “seventh”. This word probably developed from ot’kō-yā > okkōyā > okkhuia > ochui, similar to the development of ✶etkat- > S. echad-. Perhaps ᴺS. ochlad could be derived from primitive ot’k-galáta > okkh’lata > ochlad (“seven shining?”). However, the combination chl does not appear in later Sindarin.

The earlier (replaced) form oglad “week” is more phonetically plausible in Sindarin, since the gl does occur medially. However, this word probably reflects the Gnomish phonetic rule that [dl] became [gl], a rule Tolkien retained in Noldorin but abandoned in Sindarin. So perhaps a more appropriated revised form would be ᴺS. odlad, from *ot(ok)-g’lata > otlata > odlad, analogous to the revision of N. eglenn “exiled” >> S. edlen(n).

Gnomish [GL/62.1601; GL/62.1607; PE14/016.0909; PE14/021.0105] Group: Eldamo. Published by

Early Primitive Elvish

* ƀele

root. great
Early Primitive Elvish Group: Eldamo. Published by