From Newsgroup: alt.usage.english
On 31/08/2025 9:13 a.m., Richard Tobin wrote:
In article <108vnv8$2rg5r$1@dont-email.me>,
Silvano <Silvano@noncisonopernessuno.it> wrote:
Please explain "unvocalized /s/" to foreigners like me. Do you mean /z/
as in zero?
/s/ is unvocalized, /z/ is vocalized.
The OED comments (under meso-):
sporadic instances of spellings in mezo- (see, for example, mesotype
n. and mesozeugma n.) show clearly that the tendency for the
sibilant to become voiced intervocalically has operated throughout
the history of the form,
I have /s/ in Mesopotamia and /z/ in Mesoamerica, which may just
reflect how I first heard them, but may also be because the former
was just a place name while the latter was obviously a compound of
Meso- and America.
-- Richard
Cambridge Pronouncing Dictionary (Jones XVIII,2011) has pronunciations
for: mesoderm/-al/-ic, mesolect/-al, mesomorph, meson, Mesopotamia,
mesotron, mesozoic, as well as a head for the prefix as a whole (meso-).
In every case they allow both /s/ and /z/ pronunciations, for both sides
of the pond.
Kenyon & Knott (Pronunciation of American English, 1944) had /s/-only
for Meso-Gothic, Mesopotamia and Mesozoic, but allowed /z/ as an
alternative for mesothorium.
--- Synchronet 3.21a-Linux NewsLink 1.2