Tet, also written as Ṭēth, is the ninth letter of the Semitic alphabets, including
Phoenician Ṭēt ?
Hebrew Ṭēt ט
Aramaic Ṭēth ?
Ugaritic Tet ?
Syriac Ṭēṯ ܛ
Arabic Ṭāʾ ط
The sound value of Teth is /tˤ/, one of the Semitic emphatic consonants, but in Modern Hebrew, it's pronounced like a regular /t/.
The Phoenician letter name ṭēth means "wheel", but another theory suggests the letter possibly continues a Middle Bronze Age glyph named ṭab "good", Tav in Aramaic and Tov טוב in Hebrew, ṭayyib طَيّب in modern Arabic, based on the nfr "good" hieroglyph:
There is no Hebrew word for tetragrammaton. This is a Greek word for the four consonants that make up the Hebrew name of God. In Hebrew, the four consonants are used instead of the word "tetragrammaton." Religious Jews don't even pronounce the names of the letters together, and will refer to the letters as Yod Ke Vav Ke. Instead of the real names for the letters.
No, though Tet is one of the letters in the Hebrew alphabet.
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