Sound Change Game

[zyx3166]

Early Middle Hieron kóńńa [ˈkɔŋːa] > Modern Central Hieron kôa [ˈkuːa]/kôqa [ˈkuːɰa] > Roguel kuva [ˈkuβ̞a]
Early Middle Hieron tánnahu [ˈtanːahu] > Modern Central Hieron tánnahu [ˈtanaʔʉ] > Roguel tanahu [taˈnaxu]
Early Middle Hieron kóttu [ˈkɔtːu] > Modern Central Hieron kóttu [ˈkʊtʉ] > Roguel kotu ['kɔtu]
Early Middle Hieron kátrahuna [ˈkatʀahuna] > Modern Central Hieron kátrahuna [ˈkatʲʰçaʔʉna] > Roguel katiahuna [katja'xuna]

[ęzo]

Roguel kuva [ˈkuβ̞a] → Mîrkšam kufa [kʷuβa]
Roguel tanahu [taˈnaxu] → Mîrkšam tanahu [tanaɣu]
Roguel kotu ['kɔtu] → Mîrkšam kâtu [kʷɶdʷu]
Roguel katiahuna [katja'xuna] → Mîrkšam katjahuna [kadjaɣuna]

[Bristel]

Mîrkšam kufa [kʷuβa] → Proto-Celtic [kʷuba] → Celtich cuva [kuva]
Mîrkšam tanahu [tanaɣu] → Proto-Celtic [tanagu] → Celtich tanaghu[tanaɣu]
Mîrkšam kâtu [kʷɶdʷu] → Proto-Celtic [kʷedwu] → Celtich cedvu [kedvu]
Mîrkšam katjahuna [kadjaɣuna] → Proto-Celtic [kadiaguna] → Celtich caidhaghuna [kaðᶨaɣuna]

[Risla]

Celtich cuva [kuva] → Acranasian kū́fa [ˈkuːɸɐ]
Celtich tanaghu [tanaɣu] → Acranasian tanáhwu [tɐˈnɐxʷʊ]
Celtich cedvu [kedvu] → Acranasian qít'ufū [ˈqetʼʊɸuː]
Celtich caidhaghuna [kaðᶨaɣuna] → Acranasian kā́łiahwuna [ˈkaːθjɐxʷʊnɐ]

[Cedh]

Acranasian kū́fa [ˈkuːɸɐ] → Fáralo kufə [ˈkufə] → Cəssın kohə [ˈkohɤ]
Acranasian tanáhwu [tɐˈnɐxʷʊ] → Fáralo tanáfou [taˈnafo] → Cəssın tanahu [ˈt̪ɑɳɑhu]
Acranasian qít'ufū [ˈqetʼʊɸuː] → Fáralo ketoufu [ˈkɛtofu] → Cəssın ketöhö [ˈketøhʲø]
Acranasian kā́łiahwuna [ˈkaːθjɐxʷʊnɐ] → Fáralo kasiəfounə [ˈkasiə̯ˌfonə] → Cəssın keşşöne [ˈkeɕːøne]

[ęzo]

Cəssın kohə [ˈkohɤ] → Mîrkšam kohô [ˈkʷoɣɤ]
Cəssın tanahu [ˈt̪ɑɳɑhu] → Mîrkšam tanrahu [taˈnraɣu]
Cəssın ketöhö [ˈketøhʲø] → Mîrkšam ketêšê [keˈdʷøʝø]
Cəssın keşşöne [ˈkeɕːøne] → Mîrkšam keśêne [keˈʑøne]

[CatDoom]

Mîrkšam kohô [ˈkʷoɣɤ] → Iŋomœ́ kúsa: [ˈkusaː] → Satnímʔa ʔusa [ˈʔʊsa] → ʔuuleomoh ʔuumul [ˈʔuːmul]
Mîrkšam tanrahu [taˈnraɣu] → Iŋomœ́ túlusɯ: [ˈtulusɯː] → Satnímʔa tulsi [ˈtʊlsi] → ʔuuleomoh tults'aep [ˈtults'æp]
Mîrkšam ketêšê [keˈdʷøʝø] → Iŋomœ́ kézœkœ [ˈkezœkœ] → Satnímʔa ʔerʔö [ˈʔeɹʔo] → ʔuuleomoh ʔer'ŋaen' [ˈʔeˀɹŋæˀn]
Mîrkšam keśêne [keˈʑøne] → Iŋomœ́ kéjœn(e) [ˈkeɟœn(e)] → Satnímʔa ʔeŋŋe [ˈʔeŋːe] → ʔuuleomoh ʔeŋla [ˈʔeŋlɑ]

For ʔuuleomoh, I compounded each term with a native word indicating a relatively broad category of thing to which the borrowed noun belongs.

[CatDoom]

Perhaps it is time for new words. How about:

uniformitarianism [junəfɔ˞məˈtɛɹin̩ɪzm]
autohypnosis [ɑtoʊ̯hɪpˈnosɪs]
acquaintanceship [əˈkweɪ̯ntn̩ʃɪp]
satemization [seɪ̯tm̩aɪ̯ˈzeɪ̯ʃn̩]

[Bristel]

Perhaps it is time for new words. How about:

uniformitarianism [junəfɔ˞məˈtɛɹin̩ɪzm]
autohypnosis [ɑtoʊ̯hɪpˈnosɪs]
acquaintanceship [əˈkweɪ̯ntn̩ʃɪp]
satemization [seɪ̯tm̩aɪ̯ˈzeɪ̯ʃn̩]

→ Celtich unormetherinismá [unormeθerinismaː]
→ Celtich áthóchibnosis [aːθoːxibnosis]
→ Celtich cvintinshib [kvintinʃib]
→ Celtich sethemoiseshin [seθemoiseʃin]

[CatDoom]

→ Celtich unormetherinismá [unormeθerinismaː]
→ Celtich áthóchibnosis [aːθoːxibnosis]
→ Celtich cvintinshib [kvintinʃib]
→ Celtich sethemoiseshin [seθemoiseʃin]

→ Proto-Coastal-Western ʔùnolmesìľìnihma [ʔu˩noɫ˥me˥si˩ʎi˩nih˥mɐ˥] → Bol Ou unóumeiyinima [uˈno.ume.ijinima]
→ Proto-Coastal-Western ʔasexiʔnesih [ʔɐ˥se˥xiʔ˥ne˥sih˥] → Bol Ou aešíinei [a.eˈʒiːne.i]
→ Proto-Coastal-Western kùtìłiʔ [ku˩ti˩ɬiʔ˥] → Bol Ou kujišíi [kudʒiˈʒiː]
→ Proto-Coastal-Western sèsìmisìłì [se˩si˩mi˥si˩ɬi˩] → Bol Ou eimiiší [e.imiːˈʒi] (mobile accent; stress moves to the first syllable of a suffix)

[xroox]

Bol Ou unóumeiyinima [uˈno.ume.ijinima] → Tynaap unauxunaixiiniuna /unauʔunaiʔiiniuna/ [ʔuˈnɔːʔuneʔɪɲɪnə]
Bol Ou aešíinei [a.eˈʒiːne.i] → Tynaap aisiinaixi /aisiinaiʔi/ [ˈʔɛːʒɪɲeʔɪ]
Bol Ou kujišíi [kudʒiˈʒiː] → Tynaap qutisii /kʷɨtisii/ [kud͡ziˈʒiː]
Bol Ou eimiiší [e.imiːˈʒi] → Tynaap aixiunisii /aiʔiuniisi/ [ˈʔɛːʔɪnɪʒɪ]

[ęzo]

Tynaap unauxunaixiiniuna /unauʔunaiʔiiniuna/ [ʔuˈnɔːʔuneʔɪɲɪnə] → Yeqkwana qunooquneqüñünö [ʔunoːʔuneʔɨɲɨnə]
Tynaap aisiinaixi /aisiinaiʔi/ [ˈʔɛːʒɪɲeʔɪ] → Yeqkwana qeeshüñeqü [ʔeːʃɨɲeʔɨ]
Tynaap qutisii /kʷɨtisii/ [kud͡ziˈʒiː] → Yeqkwana kwutsishii [kʷutsiʃiː]
Tynaap aixiunisii /aiʔiuniisi/ [ˈʔɛːʔɪnɪʒɪ] → Yeqkwana qeeqünüshü [ʔeːʔɨnɨʃɨ]

[CatDoom]

Yeqkwana qunooquneqüñünö [ʔunoːʔuneʔɨɲɨnə] → Wendoth ųngaųnaįnjin [ṵŋgaṵnaḭɲi̤n] → Yewedu gūnèňî [guːnɛ̤ɲi̤ː]
Yeqkwana qeeshüñeqü [ʔeːʃɨɲeʔɨ] → Wendoth įshinjaį [ḭʃi̤ɲaḭ] → Yewedu cīňē [t̪s̪iːɲɛː]
Yeqkwana kwutsishii [kʷutsiʃiː] → Wendoth qechesh [qətʃəʃ] → Yewedu ches [t̪s̪ʰɛs̪]
Yeqkwana qeeqünüshü [ʔeːʔɨnɨʃɨ] → Wendoth ųįnesh [ṵḭnəʃ] → Yewedu ēnes [ʔɛːnɛs̪]

[Bristel]

Yewedu gūnèňî [guːnɛ̤ɲi̤ː] → Ercunich goneñí [goːneɲiː]
Yewedu cīňē [t̪s̪iːɲɛː] → Ercunich tíñé [tʲiːɲeː]
Yewedu ches [t̪s̪ʰɛs̪] → Ercunich tí [tʲiː]
Yewedu ēnes [ʔɛːnɛs̪] → Ercunich én [eːn]

[xroox]

Ercunich goneñí [goːneɲiː]→Tynaap kaunainii [ˈkɔ:meɲi]
Ercunich tíñé [tʲiːɲeː]→Tynaap tiinai [ˈtiːɲe]
Ercunich tí [tʲiː]→Tynaap tii [tiː]
Ercunich én [eːn] →Tynaap ain [ʔɛːɲ]

[Dē Graut Bʉr]

Tynaap kaunainii [ˈkɔ:meɲi] Bearlandic kommī [ˈkɔmːɪ]
Tynaap tiinai [ˈtiːɲe] Bearlandic tinē [ˈtiːnɛ]
Tynaap tii [tiː] Bearlandic ti [tiː]
Tynaap ain [ʔɛːɲ] Bearlandic enn [ɛnː]

Coincidentally, enn is actually an existing word in Bearlandic, meaning "and".

[ęzo]

Bearlandic kommī [ˈkɔmːɪ] → Ancient Vitran konnis [konːis] → Classical Vitran kony [kʰonǝ]
Bearlandic tinē [ˈtiːnɛ] → Ancient Vitran tines [tines] → Classical Vitran tyne [tʰǝne]
Bearlandic ti [tiː] → Ancient Vitran tis [tis] → Classical Vitran ty [tʰǝ]
Bearlandic enn [ɛnː] → Ancient Vitran enn [enː] → Classical Vitran eny [enǝ]

[youkai01]

Classical Vitran kony [kʰonǝ] → Hoemstrungë kon [koɴ]
Classical Vitran tyne [tʰǝne] → Hoemstrungë teane [təne]
Classical Vitran ty [tʰǝ] → Hoemstrungë tea [tə]
Classical Vitran eny [enǝ] → Hoemstrungë en [eɴ]

[Bristel]

Hoemstrungë kon [koɴ] → Ercunich con [kon]
Hoemstrungë teane [təne] → Ercunich tane [tane]
Hoemstrungë tea [tə] → Ercunich ta [ta]
Hoemstrungë en [eɴ] → Ercunich en [en]

[R.Rusanov]

Ercunich con [kon] → Balaeric huar [xwarə]
Ercunich tane [tane] → Balaeric thên [θe:n]
Ercunich ta [ta] → Balaeric thoa [θo̯a]
Ercunich en [en] → Balaeric iar [yærə]

[Risla]

Balaeric huar [xwarə] → Arrakum huwarre [xuˈwar:e]
Balaeric thên [θe:n] → Arrakum łēn [θe:n]
Balaeric thoa [θo̯a] → Arrakum łuwa [θuˈwa]
Balaeric iar [yærə] → Arrakum iwerre [iˈwer:e]

[GreenBowTie]

Arrakum huwarre [xuˈwar:e] Rovaic chuware [xʊˈwɐːɾɛ] chuwares [xʊˈwɐːɾɛs] (noun, fem.) Early Central hovairah [xɔ'vaiɾax]
Arrakum łēn [θe:n] Rovaic þen [ˈθɛn] þorþen [ˈθɔɾθɛn] (adj. "þen-colored") Early Central þoiþa ['θoiθa]
Arrakum łuwa [θuˈwa] Rovaic þuwa [θʊˈwɐː] þuwaosis [θʊˈwɐːosɪs] (noun, "thing that þuwa-s, þuwa-er") Early Central þovozesh [θɔ'voːzɛʃ]
Arrakum iwerre [iˈwer:e] Rovaic iwere [ɪˈweːɾɛ] iwerlirengar [ɪˈwɛɾlɪɾɛŋgʌ̈ɾ] (verb 3sg past perf, "de-iwer-ed") Early Central evailerangoi [ɛ'vailɛɾəŋgɔɪ]

[CatDoom]

Early Central hovairah [xɔ'vaiɾax] Proto-Coastal-Western xowiľah [xo˥wi˥ʎɐh˥] Bol Ou šówiya ['ʃowija]
Early Central þoiþa ['θoiθa] Proto-Coastal-Western thitha [tʰi˥tʰɐ˥] Bol Ou cíta ['tʃita]
Early Central þovozesh [θɔ'voːzɛʃ] Proto-Coastal-Western thowozeh [tʰo˥wo˥zeh˥] Bol Ou tówose ['towoze]
Early Central evailerangoi [ɛ'vailɛɾəŋgɔɪ] Proto-Coastal-Western ewiľeľàgi [ʔe˥wi˥ʎe˥ʎɐ˩gi˥] Bol Ou ewiyeyáagi [ewije'jaːgi]

[mezziah]

Bol Ou šówiya ['ʃowija] > Nisha [ʃuwi:ja]
Bol Ou cíta ['tʃita] > Nisha [tʃitah]
Bol Ou tówose ['towoze] > Nisha [tuwuzija:h]
Bol Ou ewiyeyáagi [ewije'jaːgi] > Nisha [ʔiwʒijaɢi]

[xroox]

Nisha [ʃuwi:ja] → Tynaap suuja [ˈsu:jə]
Nisha [tʃitah] → Tynaap titah [tɪˈd͡ʒaːh]
Nisha [tuwuzija:h] → Tynaap tuusijaah [ˈtuːzɪjah]
Nisha [ʔiwʒijaɢi] → Tynaap iisijaki [ˈʔiːzɪjəgɪ]