[QUOTE=Helen’s Eidolon]
Cuneiform, which was a logographic writing system like hieroglyphic writing, used in Mesopotamia was somehow adapted into the original Phoenician alphabet.
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Cuneiform was not predominantly logographic. Some symbols could be interpreted as logograms, but it was mostly used to write syllables, the precise meaning of which depended on which language it was being used for.
[QUOTE=Helen’s Eidolon]
The reasoning behind it is unclear to me, but the process was that a word meaning something which had the first phoneme as the consonant that they wished to express (eg, aleph = a = ox) became synonymous with the letter in writing.
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What you are describing is known as the acrophonic principle. If I want to used a picture of a book as a symbol in my new writing system and I’m using acrophonics, I’d assign the book the “B” sound because the first sound in the word “book” is “B.”
[QUOTE=Helen’s Eidolon]
I’m not sure about cuneiform, which was the more immediate precedent for the alphabet, but I can tell you a bit about how Egyptian writing worked. Signs had three functions. First, the straightforward one of a sign meaning what it represented. A circle with a dot in the middle, for example, meant sun. Second, is when the sign is meant to represent the sound of the word it signifies. It’s hard to explain, but an example would be if you replaced “I” with a picture of an eye in a sentence. This function is obviously much closer to alphabetic writing than the other function, and (I assume) is secondary to it.
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Again, I think you are wrong about heiroglyphics being primarily logographic. Some of them were, but most of them were a weird combination of syllabic and alphabetic that I’m sure has a technical name. The way it worked is the glyphs would represent combinations of one, two, or three letters (of course, they didn’t represent letters to the Egyptians because there were no such things as letters, but it is helpful to think of it that way). Vowels were not written. So if I wanted to write “Straight Dope” in heiroglyphics, I’d have to turn it into
STRGHT DP
and then find appropriate symbols to replace the remaining letters. I’m just making these up, but if an owl represented ST, a mouth represented R, a cat represented GHT, and a snake represented DP, I’d draw
owl mouth cat snake
and the reader would have to decipher that.
[QUOTE=Helen’s Eidolon]
Third, they had signs just to tell you what kind of word had previously been written, so (in a made up example, since I don’t have my Egyptian book handy for a real one) let’s say the word priest was written, and then following it a symbol of a kneeling male. This could mean ‘priest’. The same word could be written with a symbol of a kneeling female following it, and it could mean ‘priestess’.
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What you are talking about are called determinatives. They were used to eliminate confusion caused by the rampant homophony (two words that sound the same) in the Egyptian language and the lack of vowels in the writing system. To create an extremely simplified, modern example, if the snake represents the letters DP, that could mean either Dope or Dupe. So if I draw a snake, I might want to draw a picture of Cecil Adams after it so that you know I’m not talking about, say, Tom Cruise instead.
I hope that made some sense.