Hebrew alphabet written from right to left. It has 22 letters, five of which use different forms at the end of a word. In the traditional form, vowels are indicated by the weak consonants Aleph (), He (), Vav (), or Yodh () serving as vowel letters, or "matres lectionis": the letter is combined with a previous vowel and becomes silent, or by imitation of such cases in the spelling of other forms. Also, a system of vowel points to indicate vowels (diacritics), called niqqud, was developed. In modern forms of the alphabet, as in the case of Yiddish and to some
Hebrew alphabet of the Hebrew alphabet used to write Yiddish, is a true alphabet, with all vowels rendered in the spelling, except in the case of inherited Hebrew words, which typically retain their Hebrew spellings. The Arabic and Hebrew alphabets have similarities because they are both derived from the Aramaic alphabet. A distinct Hebrew variant of the Phoenician script, called by scholars the paleo-Hebrew alphabet, emerged around 800 BCE. Examples of related early inscriptions from the area include the tenth-century Gezer calendar, and the Siloam inscription (c. 700 BCE). The paleo-Hebrew alphabet was used in the ancient kingdoms of Israel and Judah.