Prefixes in Hebrew Prefixes in Hebrew There are several prefixes in the Hebrew language which are appended to regular words to introduce a new meaning. In Hebrew, the letters that form those prefixes are called "formative letters" (Hebrew: אוֹתִיּוֹת הַשִּׁמּוּשׁ, "Otiyot HaShimush"). Eleven of the twenty-two letters of the Hebrew alphabet are considered "Otiyot HaShimush". These letters are Aleph (א), Bet (ב), He (ה), Vav (ו), Yud (י), Kaf (כ), Lamed (ל), Mem (מ), Nun (נ), Shin (ש), and Tav (ת). A mnemonic to remember these letters is איתן משה וכלב ("Eitan, Moshe, v'Kalev"), which translates to "Ethan, Moses, and Caleb." Prefixes in
Biblical Hebrew phonemes. After a sound shift the letters , could only mark one phoneme, but (except in Samaritan Hebrew) still marked two. The old Babylonian vocalization system wrote a superscript above the to indicate it took the value , while the Masoretes added the shin dot to distinguish between the two varieties of the letter. The original Hebrew alphabet consisted only of consonants, but gradually the letters , , , , also became used to indicate vowels, known as "matres lectionis" when used in this function. It is thought that this was a product of phonetic development: for instance, *bayt ('house')