Proto-Ash-Ish

Proto-Ash-Ish (henceforth referred to as PAI) is the reconstructed protolanguage linking the Ash and Ish languages through their own respective protolanguages, Proto-Ash and Proto-Ish.

Phonology

Ish appears to be much more conservative than Ash or even Proto-Ash when it comes to the inventory of phonemes as the reconstruction of PAI is quite similar.

Vowels

The following vowels (with conventional romanisation rather than IPA) are posited:

	Front	Back
Short	*e	*a

PAI appears to have had neither the nasal vowels of Ish nor the long vowels of Proto-Ash, but otherwise the same two-way contrast as Ish.

Consonants

These are the basic consonants:

	Coronal	Dorsal	Laryngeal
Oral	*t	*k	*q
Nasal	*n
Approximant	*r	*w

Here a big difference from modern Ish is the presence of a nasal consonant whereas Ish has transferred nasality as a feature onto its vowels, losing the consonant in the process.

• As in Proto-Ash, it is unclear exactly what *q was. It merged with *k in Ish so may have been a uvular plosive but in Ash it develops into a glottal.
• The nasal *n likely assimilated the point of articulation of any other consonant in a cluster.
• The approximant *w was probably */ɰ/ as in Ish.
• The approximant *r might have been */ɹ/. It became /l~ɾ/ in Ish and disappeared in Ash.

Additionally there were important clusters that developed into new consonants in the descendants and may have been single phonemes already in PAI:

	Coronal	Dorsal	Laryngeal
Prenasalised	*nt~*ⁿt	*nk~*ⁿk	*nq~*ⁿq
Velarised	*tw~*tʷ~*tᶭ	*kw~*kʷ~*kᶭ	*qw~*qʷ~*qᶭ

The fact that these may have been single phonemes is supported by the fact that no other clusters seem to have been permitted. The convention is still to write these combinations as clusters.

• The velarised consonants may have been labiovelarised already in PAI.
• Consonants could also be both prenasalised and (labio)velarised at the same time.

The main developments into Ash and Ish were as follows:

PAI	Ash	Ish
*k	→ /k/	→ /kˣ/
*nk	→ /ŋᵍ/	→ /k/
*kw	→ /p/	→ /kˣɰ/
*nkw	→ /mᵇ/	→ /kɰ/

Ash developed poststopped nasals (which merged with the plain nasals, poststopping becoming an allophonic feature) and Ish developed a distinction between plain and aspirated or postfricated plosives.

Features

Syntactic roles

PAI appears to have had adpositions that became postpositions and eventually suffixes in Proto-Ash whereas they became prepositions in Ish.

PAI	Proto-Ash	Ish
*awa ant, *ant awa	→ *(a)wa-(a)n(t) → *wa-n	→ *a(n)t-(a)ɰa → odo /at-ɰa/

This adposition in Proto-Ash became the relational or locative case ending while in Ish it became the indirect object marker. Both reflexes are combined with the distal determiner ("that one") above.

Deixis

The aforementioned distal determiner is another example of common inheritance from PAI shared between the daughter branches alongside its proximal counterpart.

PAI	Proto-Ash	Ish
*ewe	→ *i(j), *(i)ja- → *i, *ja-	→ (iy)i /(e)ɰe/
*awa	→ *u(w), *(u)wa- → *u, *wa-	→ (ow)o /(a)ɰa/

Vocabulary

Some core vocabulary is shared between Ish and Ash but does not always mean the same thing or have a similar sound anymore. This word stock includes elements of nature, common actions, and cultural aspects.

PAI		Ash		Ish
*kaw-	"whirl, whorl, cycle, wrap"	→ goa	"be/move around, elapse"	→ qayi /kˣaɰe/	"water, flow"
*ntaw-	"fire, burn, glow"	→ *n(t)w-aj- → mee	"fire, heart, core, essence"	→ dow /taɰ/	"fire, light"
*qat-	"uncomfortable, harsh"	→ ảdla	"cold"	→ qat /kˣatˢ/	"bad"
*taw-	"stand"	→ *tw-a- → laa	"be, stand"	→ tayi /tˢaɰe/	"appear, see"

Developments

The general changes of individual sounds are fairly straightforward given the small inventory of PAI itself as well as its descendants. However in particular contexts many factors would have come into play at once, yielding more complex changes. Likewise roots were often extended with additional affixes in the daughter branches and so may not always correspond to them perfectly.

Laryngeal colouring

The back consonant *q sometimes affected vowels in the daughter languages.

PAI		Ash		Ish
*nteq-	"experience, feel"	→ "suffer" → naa; nahga	"die"; "itch, irritate"	→ nẽɱ /tẽkɰ/	"be, live, make"
		→ nao	"(sentient/mortal) individual, soul"	→ nẽɱ /tẽkɰ/	"(sentient) being, individual"

In this case we see backing of *e to *a in Ash while in Ish rhinoglottophilia served as one of the sources of its nasal vowels.