[θ:] becomes [h̪͆:]. Yes, that's a bidental fricative. Extremely rare and one of my favourite sounds.
I'm glad I could cram it in here somewhere and doing so with [θ:] seemed plausible.
Go bidental fricative!

[ˌkwǿ́ˈkwǿ́h̪͆:]

You know, if you look at [h̪͆] where it appears in natural languages, you'll see that usually it's a dialectal variation on [x] or [h], rather than [θ]. This makes sense, since neither of those phonemes are apical (and neither is [h̪͆]), while [θ] definitely is.

In view of this:

[h̪͆:] weakens to [h] in final position!

[ˌkwǿ́ˈkwǿ́h]

Well, I figured that both are dental so... yeah.


I've always had problems pronouncing h word finally. Therefore: h lengthens preceding vowel!
[ˌkwǿ́ˈkwǿ́:]

/w/ disappears, leaving labialization on consonants.

[ˌkʷǿˈkʷǿː]

Labial dissimilation again:

[ˌkʷɛ́ːkʷɛ́ː]

And apparently vowel lowering?

[ˌkʷɛˈkʷɛː]

Tone is lost.

[ɛ] raised to [e].

[ˌkʷeˈkʷeː]

Vowel reduction to schwa in unstressed syllables.

[ˌkʷəˈkʷeː]

Spirantisation in intervocalic position:

[ˌkʷəˈxʷeː]

Loss of labialization in unstressed syllables.

[ˌkəˈxʷeː]