Akros — Final Phonetic Reference

Cycle R25 — Capstone Edition

Design Philosophy

Akros phonology follows consistent sonority principles: words feel grounded, clear, and speakable. No cluster that would require English-speaker strain. The sound system is lean — fewer phonemes, more expressive combinations. Every word in the language can be produced with exactly the same mouth positions; you learn the sounds once and own the language.

The Phoneme Inventory

Consonant Chart

Nine consonants total.

Vowel Chart

Five pure vowels. No diphthongs — except for the frozen pronoun mai /mai/ (I/me), which is the sole lexicalized vowel sequence in Akros.

Phonotactic Rules

Syllable Structure: (C)V(C)

Every syllable has:

• One vowel nucleus — required
• One onset consonant — optional
• One coda consonant — optional; limited to m n l r s k only

The coda set excludes v and z. No syllable may end in these.

Word Shape

Hard rule: no non-compound word exceeds 3 syllables. Compounds (sacred names, derived forms) may reach 4 syllables only when etymologically transparent.

Stress

• Default: stress falls on the first syllable always.
• Words of 3+ syllables: light secondary stress on the third syllable.
• Stress never shifts with suffixation. The root keeps its stress; the suffix is unstressed.

Forbidden Sequences

The Five Anchor Sounds

The anchors are the generative core of Akros. They are simultaneously the shortest words, the ancient names for the five fundamental forces, and the building blocks from which most vocabulary derives. In old storytelling traditions, these forces were personified as divine figures; in everyday Akros, they are simply the roots of meaning.

ma /ma/ — Existence · Presence · Body · Being

The most grounded sound in Akros. Open mouth, voiced nasal onset, open low vowel. You cannot close the lips without making /m/. The body acknowledges its own presence.

• Generates: mavel (ancient name for the force of existence; in old stories, the divine presence), mavos (sacred/revered), mavum (temple), matoram (soul), mavok (promise), malok (ancient name for memory's force; in old stories, keeper of the deep past), malum (fate)
• Tendency: all m- initial words carry a sense of physicality, presence, the material world
• To speak ma is to say: I am here.

si /si/ — Motion · Process · Flow · Change

High front vowel (/i/) after a sibilant onset — the word physically moves forward in the mouth. The tongue rises toward the palate as the air passes.

• Generates: sivel (ancient name for the force of motion; in old stories, the walker of time), situr (ancient name for the force of thresholds; in old stories, keeper of crossings), sirak (river), silom (dawn), sikol (run), sinak (try), solvim (journey)
• Tendency: s- initial words carry motion, action, process
• To speak si is to say: Something is happening.

tu /tu/ — Boundary · Edge · Law · Truth

Unaspirated stop onset followed by a high-back rounded vowel — the mouth makes a sharp interruption then rounds into closure. A sound that ends things.

• Generates: tuvos (ancient name for the force of law; in old stories, the keeper of boundaries), situr (threshold force), tumal (earth), tolen (door), tunak (border), tusom (end), tuvnal (justice), tuvak (truth)
• Tendency: t- initial words carry edges, boundaries, definitions, structure
• To speak tu is to say: Here is where it stops.

lo /lo/ — Relation · Love · Inside · Community

Lateral onset into a full mid-back vowel — the tongue touches the ridge (defining a point) and then opens into the round, interior vowel. Sound of being held inside.

• Generates: lovel (ancient name for the force of connection; in old stories, the keeper of bonds), lorak (give), losak (lose), lomak (table), lorin (tongue), lovik (leaf), loturak (forgiveness)
• Tendency: l- initial words carry relation, intimacy, connection, interiority
• To speak lo is to say: We are in relation.

ruk /ruk/ — Force · Storm · Creation · Intensity

The only monosyllabic word with a coda stop. The flap /r/ followed by a short back vowel and a final velar stop — the syllable has maximum energy, starting in motion and ending in a hard stop. The sound of force meeting form.

• Generates: rukoma (ancient name for the force of creation; in old stories, the storm-maker), rukvos (divine power), rukim (spirit), rukon (power), ruvel (wolf), noruk (catch), simurak (agree)
• Tendency: ruk- words carry intensity, power, the generative and destructive creative act
• To speak ruk is to say: Force is here.

Sound-Meaning Correspondences (Phonaesthesia)

These are tendencies, not rules. They emerged organically as the lexicon grew. A speaker can feel them without being taught them.

Phonaesthetic Pairs (Documented)

These pairs share a phonological root and a semantic logic. They are not homophones — they are deliberate echoes.

Canonical Minimal Pairs (Phonemic Contrasts)

These pairs confirm that each phoneme is distinctly functional:

Pronunciation Guide for Learners

Vowels — The Most Important Thing

Every vowel is pure. English vowels glide. Akros vowels do not.

Consonants — The Three to Watch

r: Tap your tongue once, quickly, behind the upper teeth. Like the Spanish /r/ in "pero." Not the English growl. Not a full trill. One tap.

t, k: Unaspirated. Say "stop" — feel that the /t/ has no puff of air after it. That is Akros /t/. Say "skip" — feel that the /k/ has no puff. That is Akros /k/. The aspirated versions ("top," "kite") do not exist in Akros.

v: Always the English /v/ (labiodental fricative). Never the English /w/ (bilabial approximant).

Stress — In Doubt, Hit the First Syllable

NA-lem      (not na-LEM)
VE-la       (not ve-LA)
TI-ron      (not ti-RON)
MA-vel      (not ma-VEL)
RU-ko-ma    (not ru-KO-ma)
SI-mu-rak   (not si-mu-RAK)

The Sound Map of Akros

A way to see the whole phonology at once.

STOPS:      t  k                (unaspirated — no puff)
FRICATIVES: s  v  z             (z word-internal only)
NASALS:     m  n                (humming consonants)
LATERAL:    l                   (tongue on ridge)
FLAP:       r                   (one tap, never a growl)

VOWELS:     a    e    i    o    u
            low  mid  high mid  high
            front          back

ONSET RULE:   any consonant — or none
CODA RULE:    m  n  l  r  s  k — or none
CLUSTER RULE: none permitted, ever
STRESS RULE:  first syllable, always

Notes for Etta (Grammar Integration)

On the tor- pair: The phonaesthetic relationship between toram (forget) and torem (change) is now formally documented. Both use the tor- root; both involve transformation of a prior state. A grammar section on "productive phonaesthetic roots" would complete this picture. The pair can serve as a model for how phonaesthesia and morphology interact in Akros.

On ven (or) vs. ven (experiential aspect): The context rule is now documented in vocabulary.md. Ven as connector joins clauses; ven as aspect particle immediately precedes a verb. No further disambiguation mechanism is needed — word order does the work.

On -tul and -vos as honorific suffixes (E42): Confirmed that no R-cycle vocabulary word uses -tul as a stem. The suffix is clean for its grammatical function. Words ending in -vos include: tuvos (god's name, not a derived form), rukvos (divine power — compound, transparent), mavos (sacred — compound, transparent). All are etymologically clear; -vos as an honorific suffix on human names/roles remains unambiguous.

On register and vocabulary: Several R22–R24 words carry implicit register weight:

• tuvnal (justice), vasnam (freedom) — formal/philosophical register
• manik (oath), voskan (law), talrom (council) — formal/civic register (new in R25)
• kaslem (fire-dance), loksel (prayer), sitvel (ceremony) — archaic/ritual register (these forms survive in traditional ceremony and storytelling; not actively practiced as a living religion)
• mavok (promise), sorel (song), mirak (music) — can move across registers