The Deverrian language, which we might well call neo-Gaulish, looks and sounds much like Welsh, but anyone who knows this modern language will see immediately that it differs in a great many respects, as it does from Cornish and Breton. All these languages are members of that subfamily of Indo-European known as P-Celtic.
VOWELS are divided by Deverry scribes into two classes: noble and common. Noble have two pronounciations; commons, one.
A as in father when long; a shorter version of the same sound, as in far, when short.
O as in bone when long; as in pot when short.
W as the oo in spook when long; as in roof when short.
Y as the i in machine when long; as the e in butter when short.
E as in pen.
I as in pin.
U as in pun.
Vowels are generally long in stressed syllables; short in unstressed. Y is the primary exception to this rule. When it appears as the last letter of a word, it is always long whether the syllable is stressed or not.
DIPHTHONGS generally have one consistent pronounciation.
AE as the a in mane.
AI as in aisle.
AU as the ow in how.
EO as a combination of eb and oo.
EW as in Welsh, a combination of eh and oo.
IE as in pier.
OE as the oy in boy.
UI as the North Welsh wy, a combination of oo and ee.
Note that OI is never a diphthong, but is two distinct sounds, as in Carnoic, (KAR-noh-ik).
CONSONANTS are mostly the same as in English, with these exceptions:
C is always hard as in cat.
G is always hard as in get.
DD is the voiced th as in thin or breathe, but the viocing is more pronounced than in English. It is opposed to TH, the unvoiced sound in breath. (This is the sound that the Greeks called the Celtic tau.)
R is heavily rolled.
RH is a voiceless R, approximately pronounced as if it were spelled hr in Deverry proper. In Eldidd, the sound is fast becoming indistinguishable from R.
DW, GW, and TW are single sounds, as in Gwendolen or twit.
Y is never a consonant.
I before a vowel at the beginning of a word is consonantal, as it is in the plural ending -iom, pronounced yawn.
DOUBLE CONSONANTS are both sounded clearly, unlike in English. Note, however, that DD is a single letter, not a double consonant.
ACCENT is generally on the penultimate syllable, but compound words and place names are often an exception to this rule.