I was only talking about the “sound”/phoneme

Cheth makes the “H” sound, to be sure, but it also makes the Ch sound, ergo the name ; otherwise I would expect it to be “Heth”.
The letter
http://upload.wikimedia.org/wikiped...enician_heth.svg/30px-Phoenician_heth.svg.png (
ḥēth) originally represented a voiceless fricative, either pharyngeal /ħ/, or velar /x/. In Modern Israeli Hebrew, the letter usually has the sound value of a voiceless uvular fricative (/χ/), due to European influence, where the phonemes of
ḥēth ח (/ħ/) and
kaf without the
dagesh כ (/x/) merged. The original /ħ/ pronunciation is current still among
Mizrahim (especially among the older generation and popular Mizrahi singers), in accordance with oriental Jewish traditions.
The ability to pronounce the Arabic letter ḥāʾ (ح) correctly as a voiceless pharyngeal fricative /ħ/ (note that in modern Arabic, unmodified
ḥāʾ ح represents /ħ/, while
ḫāʾ خ - with an upper dot - represents /x/) is often used as a shibboleth to distinguish Arabic-speakers from non-Arabic-speakers; in particular, pronunciation of the letter as /x/ is seen as a hallmark of Ashkenazi Jews and Greeks.
In any event, in Egyptian hieroglyphs, the letters themselves are usually pictures of birds, etc; and often stylistically interpreted. The Hebrews did spend quite some time in Egypt, so the relationship isn’t surprising. (Even the Patriarch’s did, long before…)
According to one theory, the Phoenician alphabet is a descendant of the so-called
Proto-Sinaitic alphabet mainly attested in a very small collection of inscriptions at the turquoise mines of
Serabit el-Khadim in the Sinai Peninsula. It is thought that the script was mainly used by Asiatics who worked in the mines during the Middle Bronze Age (ca. 1850 BC) and who spoke the Canaanite subfamily of the Semitic language group (the ancestor of Phoenician and Hebrew). There are also sporadic attestations of very short Proto-Sinaitic inscriptions in Canaan proper in the late Middle and Late Bronze Age, but the script was not widely used until the rise of new kingdoms in the 13th and 12th centuries BC.
Furthermore, the theory is that
Proto-Sinaitic split into the
South Arabian script (the ancestor of Ethiopian
Ge’ez) and the Proto-Canaanite script in the Late Bronze Age. The Proto-Canaanite script would then have evolved into
Phoenician proper by 1100 BC. This Phoenician script then developed local variants in Canaan (as well as in other places where the Phoenicians have spread their influence), Aramaic and
Paleo-Hebrew being two of them. After the Babylonian capture of Judea, when most of the nobles were taken into exile, the Paleo-Hebrew alphabet continued to be used by the people who remained, while those who were exiled began to adopt Imperial Aramaic, the
lingua franca of the Persian Achaemenid Empire. The Exiles brought the script and the language home with them, thereby giving birth to
the square alphabet we recognize today as ‘Hebrew’, though Paleo-Hebrew still saw some use as a script of choice for Scripture and coinage among the Jews, while the Samaritans have retained wholesale use of it, resulting in the
Samaritan alphabet.
Traces of the
16 and
12 characters of the two
Wadi el-Hol inscriptions.
http://img651.imageshack.us/img651/1903/protosinaitic.png
Proto-Sinaitic (c. 1500 BC), based from
here; unattested letters missing
Phoenician (c. 1050 BC-300 AD)
Early Aramaic (ca. 10th-9th century BC)
http://www.typophile.com/files/hebrew-script_5538.jpg
Paleo-Hebrew (10th century BC-AD 135)
1: Gezer Calendar (10th century BC)
2: Mesha stele (Moabite; 9th century BC)
3: Siloam inscription (8th century BC)
4: 7th century BC seals
5: Early 6th century ostracon from
Arad
6: 2nd century BC
Leviticus fragment
7: Medieval Samaritan bookhand
Imperial Aramaic (ca. 5th century BC)