Sound Change Game

[Nortaneous]

Airya [airja] > Amqoli arya [arʲa]
dainghupaitish [daiŋhupaitiʃ] > Amqoli demkupashcha [deŋkupaʃtʃa]
fshuyańt [fʃujaɲt] > Amqoli pshulyenta [pʃulʲenta]
rathaêshtar [raθaɪ̯ʃtar] > Amqoli rateshtar [rateʃtar]

[KathTheDragon]

Amqoli arya [arʲa]
Amqoli demkupashcha [deŋkupaʃtʃa]
Amqoli pshulyenta [pʃulʲenta]
Amqoli rateshtar [rateʃtar]

> Methinat áryā ['arjɑ:]
> Methinat ténkupaštšā ['tenkupaʃtʃɑ:]
> Methinat pšúlyentā ['pʃuljentɑ:]
> Methinat ráteštar ['rateʃtar]

(Can I just say that quoting Nort is one of the most mind-taxing things I've done on the ZBB)

[Nortaneous]

Methinat áryā ['arjɑ:] Vian wqtlipyap [wɒ́lìjà]
Methinat ténkupaštšā ['tenkupaʃtʃɑ:] Vian tzntkuppqpxypchap [tə́ɴkùpɒ̀ʃʒ̩̀tʃà]
Methinat pšúlyentā ['pʃuljentɑ:] Vian pvshutneptap [pʙ̩̄ʃúnèɴtà]
Methinat ráteštar ['rateʃtar] Vian lattzpshyptaplp [látə̀ʃʒ̩̀tàll̩̀]

(ɴ = nasalization)

[Cedh]

Vian wqtlipyap [wɒ́lìjà] → Proto-Western waliya [wɑlijɑ] → Gezoro wɔri [ˈwɔɾi]
Vian tzntkuppqpxypchap [tə́ɴkùpɒ̀ʃʒ̩̀tʃà] → Proto-Western tẽkupawšica [tɛ̃kupɑwʃitsɑ] → Gezoro tɜ̃kɔpɔusets [tɜ̃kɔˈpɔʊsets]
Vian pvshutneptap [pʙ̩̄ʃúnèɴtà] → Proto-Western pʰušunẽta [pʰuʃunɛ̃tɑ] → Gezoro pʰulnat [ˈpʰulnat]
Vian lattzpshyptaplp [látə̀ʃʒ̩̀tàll̩̀] → Proto-Western latãšitał [lɑtɐ̃ʃitɑɬ] → Gezoro rɔtletɔr [ɾɔˈtletɔɾ]

[WeepingElf]

Gezoro wɔri [ˈwɔɾi] → Proto-Hesperic *wari > Old Albic vir [wɪr]
Gezoro tɜ̃kɔpɔusets [tɜ̃kɔˈpɔʊsets] → Proto-Hesperic *tankap'usas > Old Albic tangcaphosas [tɐŋ'kɐɸɔsɐs]
Gezoro pʰulnat [ˈpʰulnat] → Proto-Hesperic *p'ulnat > Old Albic pholnath ['ɸɔlnɐθ]
Gezoro rɔtletɔr [ɾɔˈtletɔɾ] → Proto-Hesperic *ratlat'ar > Old Albic ratlathar ['rɐtlɐθɐr]

[CatDoom]

Old Albic vir [wɪr] > Yewedu wē [weː]
Old Albic tangcaphosas [tɐŋ'kɐɸɔsɐs] > Yewedu ṭēgeṣheṣ [ˌʈeːgə'ʂʰɛʂ]
Old Albic pholnath ['ɸɔlnɐθ] > Yewedu fâne [fa̤ː'ne]
Old Albic ratlathar ['rɐtlɐθɐr] > Yewedu recē [rə't̪s̪eː]

[Das Public Viewing]

Yewedu wē [weː] >> New Vyunoti वे [vʲe]
Yewedu ṭēgeṣheṣ [ˌʈeːgə'ʂʰɛʂ] >> New Vyunoti टेगखे [ʈʲeg'xʲe]
Yewedu fâne [fa̤ː'ne] >> New Vyunoti फने [fnʲe]
Yewedu recē [rə't̪s̪eː] >> New Vyunoti रथे [r̩'θʲe]

Optional Longer Roots:
Proto-Uber-Wheelic: 'ebeĵekatulas [ʔɛ.ˈbɛ.ɟɛ.ka.tu.las]
Ungdan-Skitz: tojmintávalmijkßir [toj.mɪn.ˈtä.väl.mɪjk.siɹ]
Proto-Slavic: snēgŭsŭvĭśiščĭskŭjŭ [ˌsnæː.gɯ.sɯ.vi.ˈɕi.ʃtʃi.skɯ.jɯ]
German: Auslautverhärtung /ˈaʊ̯z.laʊ̯t.fəɐ̯.ˌhɛɐ̯.tʊŋ/ (pick a dialect)

[CatDoom]

Proto-Uber-Wheelic: 'ebeĵekatulas [ʔɛ.ˈbɛ.ɟɛ.ka.tu.las] > Proto-Coastal-Western: ʔebedekokulasa [ʔébédékókúɫɐ́sɐ́]
Bol Ou éebeedegogulaa [ˈeːbeːdegogulaː]

Ungdan-Skitz: tojmintávalmijkßir [toj.mɪn.ˈtä.väl.mɪjk.siɹ] > Proto-Coastal-Western: tìbìtaweľbiʔliľi [tìbìtɐ́wéʎbíʔɫíʎí]
Bol Ou ciibidaweíibibuii [tʃiːbidaweˈiːbibu.iː]

Proto-Slavic: snēgŭsŭvĭśiščĭskŭjŭ [ˌsnæː.gɯ.sɯ.vi.ˈɕi.ʃtʃi.skɯ.jɯ] > Proto-Coastal-Western: sènoxuxuwizihduhkuju [sènóxúxúwízíhdúhkújú]
Bol Ou enóšušuwisijuguyu [eˈnoʒuʒuwizidʒuguju]

German: Auslautverhärtung /ˈaʊ̯z.laʊ̯t.fəɐ̯.ˌhɛɐ̯.tʊŋ/ > Proto-Coastal-Western: ʔohxokaʔòkù [ʔóhxókɐ́ʔòkù]
Bol Ou óšogaogu [ˈoʒoga.ogu]

Note that stress here represents a pitch accent, with the accented syllable bearing a higher pitch than the other syllables in the word.

[xroox]

Bol Ou éebeedegogulaa [ˈeːbeːdegogulaː] → Tnaaq aiqaitaikaukuraa [ˈɛged͡zed͡ʒogʊra]→aiqaikura [ˈɛːged͡ʒʊrə]
Bol Ou ciibidaweíibibuii [tʃiːbidaweˈiːbibu.iː] →Tnaaq ikiiqitawaihiiqiquhi [ɪˈd͡ʒiːgɪd͡zəwejigʷɪgʊwɪ]→iiqiquwi [ˈiːgʷɪgʊwɪ]
Bol Ou enóšušuwisijuguyu [eˈnoʒuʒuwizidʒuguju] →Tnaaq ainausuisuhisikuquiu [ˈɛːɲozʊʒʊwɪʒɪd͡ʒʊgʊjʊ]→ ainsuskui [ˈɛɲd͡ʒʊhku]
Bol Ou óšogaogu [ˈoʒoga.ogu] →Tnaaq ausaukahauqu [ˈɔːzogəɦogʊ]→ ausaukauqu [ˈɔːzogogʊ]

[Bristel]

aiqaikura [ˈɛːged͡ʒʊrə] → Sassic: íghedhur [iːɣeður]
iiqiquwi [ˈiːgʷɪgʊwɪ] → Sassic: íwighuvi [iːwiɣuvi]
ainsuskui [ˈɛɲd͡ʒʊhku] → Sassic: endhuchku [enðuxku]
ausaukauqu [ˈɔːzogogʊ] → Sassic: ósoghoghu [oːsoɣoɣu]

[CatDoom]

Sassic: íghedhur [iːɣeður] → Unnamed Dravidiany Conlang (UDC) īyalur [iːjal̪uɾ]
Sassic: íwighuvi [iːwiɣuvi] → UDC īviyuvi [iːʋijuʋi]
Sassic: endhuchku [enðuxku] → UDC antukku [an̪d̪ukku]
Sassic: ósoghoghu [oːsoɣoɣu] → UDC ūrayayu [uːɾajaju]

[Das Public Viewing]

UDC īyalur [iːjal̪uɾ] → Altaëmuic zolly [zo.ˈly]
UDC īviyuvi [iːʋijuʋi] → Altaëmuic yzy [ˈy.zy]
UDC antukku [an̪d̪ukku] → Altaëmuic otkku [ot.ˈku]
UDC ūrayayu [uːɾajaju] → Altaëmuic ozaz [ˈo.zʌz]

[CatDoom]

Altaëmuic zolly [zo.ˈly] → Proto-Western [ˈdzaɬwi] → ʔuulhemoo gal [gal]
Altaëmuic yzy [ˈy.zy] → PW [ˈwidzwi] → ʔuulhemoo ui [ui̯]
Altaëmuic otkku [ot.ˈku] → PW [ˈʔaʔkʷu] → ʔuulhemoo ọh [ɔx]
Altaëmuic ozaz [ˈo.zʌz] → PW [ˈʔadzadzu] → ʔuulhemoo ụg [ʊg]

Or, if you're not a fan of the whole brevity thing, try these:

Tatterdemalion [ˈtʰæɾɚɾəmeɪ̯li.ən]
Uniformitarianism [junəfɔ˞məˈtʰɛɹi.ənɪzəm]
Dendrochronology [dɛndɹoʊ̯kɹəˈnɑl.ə.dʒi]
Heteronormativity [hɛɾɚɹoʊ̯nɔ˞məˈtʰɪvɪɾi]

[KathTheDragon]

UDC īyalur [iːjal̪uɾ] → Altaëmuic zolly [zo.ˈly]
UDC īviyuvi [iːʋijuʋi] → Altaëmuic yzy [ˈy.zy]
UDC antukku [an̪d̪ukku] → Altaëmuic otkku [ot.ˈku]
UDC ūrayayu [uːɾajaju] → Altaëmuic ozaz [ˈo.zʌz]

I am extremely skeptical that these are the best possible matches.

[Nortaneous]

Tatterdemalion [ˈtʰæɾɚɾəmeɪ̯li.ən] Hathe tarîtèmethiyène [taɾɘˤdəmeðijənə]
Uniformitarianism [junəfɔ˞məˈtʰɛɹi.ənɪzəm] Hathe yunivâmètethiyènisème [jʉniwɒˤmədeðijənizəmə]
Dendrochronology [dɛndɹoʊ̯kɹəˈnɑl.ə.dʒi] Hathe tenetorokoronathèchi [tenedoɾogoɾonaðətʃi̥]
Heteronormativity [hɛɾɚɹoʊ̯nɔ˞məˈtʰɪvɪɾi][/quote] Hathe herîthonâmètiviri [ɦeɾɘˤðonɒˤmədiviɾi]

[CatDoom]

Hathe tarîtèmethiyène [taɾɘˤdəmeðijənə] Ray Tyuwey Išup traratremeytiin [ʈaɾaɖɛmejd̪iːn]
Hathe yunivâmètethiyènisème [jʉniwɒˤmədeðijənizəmə] Ray Tyuwey Išup yuniwometreytiinirem [juniwɔmɛɖejd̪iːniɾɛm]
Hathe tenetorokoronathèchi [tenedoɾogoɾonaðətʃi̥] Ray Tyuwey Išup treyneytrowrowkowrownateš [ʈejnejɖowɾowgowɾownad̪ɛʃ]
Hathe herîthonâmètiviri [ɦeɾɘˤðonɒˤmədiviɾi] Ray Tyuwey Išup heyratownometriwiri [hejɾad̪ownɔmɛɖiwiɾi]

[Nortaneous]

Ray Tyuwey Išup traratremeytiin [ʈaɾaɖɛmejd̪iːn] Kanagy taratemeyediin [tʂaratʂẽmẽɲẽt̪ĩːn]
Ray Tyuwey Išup yuniwometreytiinirem [juniwɔmɛɖejd̪iːniɾɛm] Kanagy yinimimeteyediininem [ɲɨ̃nɨ̃mɨ̃mẽtʂejet̪ɨ̃ːnɨ̃nẽm]
Ray Tyuwey Išup treyneytrowrowkowrownateš [ʈejnejɖowɾowgowɾownad̪ɛʃ] Kanagy teyineyitawurowukamunamunates [tʂẽɲĩnẽɲĩtʂawuɾawukãmɨ̃nãmɨ̃nãtʂeʂ]
Ray Tyuwey Išup heyratownometriwiri [hejɾad̪ownɔmɛɖiwiɾi] Kanagy heyeradiminimetiwiri [hejeɾat̪ɨ̃mɨ̃nɨ̃mẽtʂɨwɨɾɨ]

and then borrow these into a conlang with a maximum word length limit:

Ngmwragh cñiin
Ngmwragh ngmytun
Ngmwragh cneet
Ngmwragh heerm

[Travis B.]

As no IPA was provided with the short words, I will go with using the long words:

Kanagy taratemeyediin [tʂaratʂẽmẽɲẽt̪ĩːn] Cwôła kyêrkymen [tɕeːrtɕmɛ̃]
Kanagy yinimimeteyediininem [ɲɨ̃nɨ̃mɨ̃mẽtʂejet̪ɨ̃ːnɨ̃nẽm] > Cwôła nyinnyin [ɲẽɲẽ]
Kanagy teyineyitawurowukamunamunates [tʂẽɲĩnẽɲĩtʂawuɾawukãmɨ̃nãmɨ̃nãtʂeʂ] > Cwôła kyennyin [tɕɛ̃ɲẽ]
Kanagy heyeradiminimetiwiri [hejeɾat̪ɨ̃mɨ̃nɨ̃mẽtʂɨwɨɾɨ] > Cwôła heyera [hejerɐ]

[CatDoom]

Cwôła kyêrkymen [tɕeːrtɕmɛ̃] UDC cīricmaŋ [t̠ʲiːɾid̠ʲmaŋ]
Cwôła nyinnyin [ɲẽɲẽ] UDC ńańaŋ [n̠ʲan̠ʲaŋ]
Cwôła kyennyin [tɕɛ̃ɲẽ] UDC cańaŋ [t̠ʲan̠ʲaŋ]
Cwôła heyera [hejerɐ] UDC iyara [ijaɾa]

[WeepingElf]

UDC cīricmaŋ [t̠ʲiːɾid̠ʲmaŋ] → Proto-Hesperic *tiridman > Proto-Alpianic *thirtmã > Arne tsirme ['tsɪʀmə]
UDC ńańaŋ [n̠ʲan̠ʲaŋ] → Proto-Hesperic *njanjan > Proto-Alpianic *nenẽ > Arne nen [nɛn]
UDC cańaŋ [t̠ʲan̠ʲaŋ] → Proto-Hesperic *tjanjan > Proto-Alpianic *thenẽ > Arne tsen [tsɛn]
UDC iyara [ijaɾa][/quote] → Proto-Hesperic *ijara > Proto-Alpianic *iara > Arne jar [jar]

[Nortaneous]

welp, i tried

Arne tsirme ['tsɪʀmə] Vian cymqp [tsz̩̄mɒ̀ɴ]
Arne nen [nɛn] Vian ne [nēɴ]
Arne tsen [tsɛn] Vian czn [tsə̄ɴ]
Arne jar [jar] Vian yalzp [jālə̀]

[opipik]

Vian cymqp [tsz̩̄mɒ̀ɴ] Kanawa ci'mán [ʧiʔmɐn]
Vian ne [nēɴ] Kanawa ná [nɐ]
Vian czn [tsə̄ɴ] Kanawa cán [ʧɐn]
Vian yalzp [jālə̀] Kanawa yalá [jɑlɐ]

[CatDoom]

Kanawa ci'mán [ʧiʔmɐn] Bol Ou ciimani [ˈʧiːmani]
Kanawa ná [nɐ] Bol Ou na [na]
Kanawa cán [ʧɐn] Bol Ou cani [ˈʧani]
Kanawa yalá [jɑlɐ] Bol Ou iola [iˈoɫa]

[Bristel]

Bol Ou ciimani [ˈʧiːmani] → Ercunic tívain [tʲiːvanʲ]
Bol Ou na [na] → Ercunic na [na]
Bol Ou cani [ˈʧani] → Ercunic tiain [tʲianʲ]
Bol Ou iola [iˈoɫa] → Ercunic ola [ola]

[Nortaneous]

Ercunic tívain [tʲiːvanʲ] Kannow t'iiwaņow [ˈtʼiːwɔŋəw]
Ercunic na [na] Kannow naaw [nɑːw]
Ercunic tiain [tʲianʲ] Kannow c'iįaņow [cʼiˈjanəw]
Ercunic ola [ola] Kannow wolaaw [woˈdɮɑːw]