Ahōtoli

Ahōtolĭ, called Azódori in Xiri, was a language originating on the large southern island of Udovuʼo, called Azódo in Xiri and Ahōto in Ahōtolĭ, and is a sister language to Xiri. It took over as the lingua franca of Udovuʼo after the Xiyeru exodus to T'ugü at the end of the 7th century, and was the most commonly spoken language in Udovuʼo as of 800 AGS.

Lack of labial consonants
Ahōtolĭ exhibits an almost complete lack of labial consonant phonemes, an extremely uncommon feature cross-linguistically. Proto-Xiri's labial consonants *m *p *f shifted to /n t s/ in Ahōtolĭ, leaving /w/ as the only consonant with labial articulation. All dialects of Udovuʼo experienced centuries of influence from Xiri, which directed them along convergent evolutionary paths, but Ahōtolĭ appears to have resisted the adoption of bilabial consonants due to conscious social factors.

Culture in Azodo had historically been more isolationist than the other islands, and when Xiri first began to spread to Azodo, children were often discouraged from speaking with labial consonants outside of specific situations which required the use of the Xiri language. Xiri's most common consonant /f/ was considered particularly unpleasant to many people, perhaps owing to its abundant use as a grammatical prefix on verbs which was not present in Ahōtolĭ. The Nenăwanaʼă "cultivation of proper speech", a 5th century Ahōtolĭ text outlining the differences between the language and standard Xiri, calls the f- glyphs of the Ugugo script "as pointless as they are obnoxious", and describes Xiri's /f/ as "a wholly useless sound which may carry no meaning, and whose use signifies witlessness and a lack of self-cognisance".

After Ahōtolĭ was popularised throughout the other islands in the 7th and 8th centuries AGS, labial consonants became associated with "improper" dialects, and even became somewhat taboo in some more formal contexts. Despite this, [m] was not uncommon to hear among the speech of even the most well-spoken individuals as a realisation of utterance-initial /w/, or for some speakers in free variation with /ŋ/ before close back vowels (ŭ u ū).

Vowels
Ahōtolĭ is a mora-timed language which features three contrastive vowel lengths of one, two and three morae.

The short vowels (ĭ ă ŭ) are never stressed and typically realised with slightly centralised vowel qualities [ɪ ɐ ʊ], while the long vowels (ē ō ī ū) sometimes have a slight degree of dipthongisation for some speakers [ɛːɐ̯ ɔːɐ̯ iːɘ̯ uːɘ̯]