Breton
a = father or bath
e = made or end
eu = German hören
i = keen or it
o = ode or cot
ou = spoon or pull
u = French mur or German fünf
b = beat
ch = shoe
c'h = Scottish loch
d = dart
f = fine
g = go, girl – never gin
g (final) = sock
gn = onion
ihl = like Italian gli
j = measure
k = kale
l = leap
m = mother
n = nice
p = pal
r = horrid (trilled) or French r – never like English r
s = song
t = tank
v = velvet
v (final) = w or silent
w (after i) = spiv
z = zone
zh = spelling device to unify spellings with z vs. h in different areas of Brittany
From Dictionary of Celtic Mythology by James MacKillop.