Over on Facebook, a reader writes:
Mr. Akin, could you possibly post "Abba" in Aramaic fully pointed. Why is the Beta repeated?~Thanks again
First let's look at "Abba" in Greek, which is displays the issue that the reader is wondering about. Here is how the word appears in Greek (cf. Mark 14:36 in a typical Greek New Testament):
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As you can see, the term is spelled alpha-beta-beta-alpha. The reader asks why the beta is repeated, and the answer is that this is how they said it, with a reduplicated "b" sound separating the two vowel sounds. The Greek is giving us a fuller phonetic explanation of the word (how it sounds)–at least in this respect. (The Greek, like the English, does not record the invisible consonant on the front of the word.)
Now here's how the same word looks in Hebrew/Aramaic block script (which is a stylized form of the Aramaic alphabet, though it is most familiar to us as the script used to write modern Hebrew):
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It's spelled aleph-beth-aleph, which prompts the reader's question: Why only one letter corresponding to "b" in this version?
The answer is that the original Semitic scripts were unpointed, meaning that they only included consonants (aleph is a consonant, believe it or not, though it later came to serve as a kind of vowel marker, making it a mater lectionis). Also, because of the way syllabification works in Semitic languages, their scripts often do not (or in unpointed versions do not) mark reduplicated consonants.
Thus even though you said the word "ABBA," you'd spell it "ABA." In an unpointed script, if you spelled it "ABBA" then the second "B" would suggest an extra syllable: "a-ba-ba" or something like that.
This reflects a fact that is also true of English (and even moreso French!): the script for the language is not fully phonetic. It is assumed that you already know the words you are reading and just need enough visual information to help you identify the word. You don't need how it's actually said spelled out in detail. That's what allowed the ancient Semites to get away without using VWLS N TH FRST PLC.
Eventually, they did come up with ways of indicating vowels–and other things–using a system of "points," which are small marks placed above, below, or within the letters. In the block script version of the word above, the marks under the first two letters (reading from right-to-left) are vowels–two different versions of the "a" sound.
The dot in the middle of the middle letter (beth), however, is not a vowel. It's a mark known as a dagesh forte (borrowing from Latin, meaning a "strong" dagesh). The dagesh forte (also called a dagesh hazak) tells you "double this consonant."
Thus even if you don't know the word "Abba," you could figure out how to say it using the modern, pointed version, because the dagesh forte tells you to say it "ABBA" rather than "ABA."
There are a variety of other Aramaic scripts that the word can be written in, and they have their own unique pointing rules, but the same basic issue applies.
Hope this clarifies the case of the missing "B"!