Quenya 

nixë

frost

nixë noun "frost" (WJ:417); previously described as a synonym of niquis "ice-flake or snowflake", q.v. (PE17:168)

Sindarin 

hell

9j¸$ noun. frost

Sindarin [Etymologies] Group: Subject of debate. Published by

nich

noun. frost

A neologism for “frost”, cognate of Q. nixë of the same meaning (WJ/417), that assumes a phonetic development similar to that of S. ach vs. Q. akse (axë) “neck” (PE17/92); see the entry on how [[os|[p], [t], [k] spirantalized before [s]]] in (Old) Sindarin.

Cognates

  • Q. nixë “frost; ice-flake or snow-flake”

Derivations

  • NIK(W) “(also of) snow, ice, snow, ice; *white”
Sindarin Group: Eldamo - neologism/reconstructions. Published by

Noldorin 

hell

noun. frost

A noun in The Etymologies of the 1930s glossed “frost” derived from the root ᴹ√KHEL “freeze”, but Tolkien deleted this short root and its derivatives, keeping only the longer form ᴹ√KHELEK (Ety/KHEL).

Conceptual Development: The Gnomish Lexicon of the 1910s had a number of similar “frost” related words: G. heloth “frost”, G. hîl {“ice-cold, icy” >>} “frost” as well as G. helfileg “frost on panes, etc.” (GL/48-49), all based on the early root ᴱ√HELE “freeze”, the last with the added element G. fileg “fern”.

Neo-Sindarin: Tolkien probably deleted N. hell “frost” because he abandoned the short root ᴹ√KHEL, but short √KHEL did reappear in later writings (PE17/116), so it is tempting to restore hell “frost” as well. However, this conflicts with other attested words like N. hell “naked”, so I think it is better to use a neologism like ᴺS. nich for “frost”; see that entry for discussion.

Cognates

  • ᴹQ. helle “frost” ✧ Ety/KHEL

Derivations

  • ᴹ√KHEL “freeze” ✧ Ety/KHEL

Phonetic Developments

DevelopmentStagesSources
ᴹ√KHEL > hell[kʰelle] > [xelle] > [xell] > [hell]✧ Ety/KHEL

Variations

  • hell ✧ Ety/KHEL (hell)
Noldorin [Ety/KHEL] 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!

Qenya 

helor

noun. frost

Derivations

  • ᴹ√KHEL “freeze”

helle

noun. frost

Cognates

  • N. hell “frost” ✧ Ety/KHEL

Derivations

  • ᴹ√KHEL “freeze” ✧ Ety/KHEL

Phonetic Developments

DevelopmentStagesSources
ᴹ√KHEL > helle[kʰelle] > [xelle] > [helle]✧ Ety/KHEL

Variations

  • helle ✧ Ety/KHEL (helle)

Gnomish

heloth

noun. frost

Gnomish [GL/48; GL/49; LT1A/Helkar] Group: Eldamo. Published by

hîl

noun. frost

Changes

  • hîlhîl “ice-cold, icy” ✧ GL/49

Derivations

  • ᴱ√HELE “*freeze” ✧ GL/48

Phonetic Developments

DevelopmentStagesSources
ᴱ√χele-k > hîl[xēl] > [xīl] > [hīl]✧ GL/48