Dagesh

The dagesh (דָּגֵשׁ‎) is a diacritic used in the Hebrew alphabet. It was added to the Hebrew orthography at the same time as the Masoretic system of niqqud (vowel points). It takes the form of a dot placed inside a Hebrew letter and has the effect of modifying the sound in one of two ways.

An identical mark, called mappiq, has a different phonetic function, and can be applied to different consonants; the same mark is also employed in the vowel shuruk.

Dagesh and mappiq symbols are often omitted in writing. For instance, בּ‎ is often written as ב‎. The use or omission of such marks is usually consistent throughout any given context. The two functions of dagesh are distinguished as either kal (light) or ḥazak (strong).

A dagesh kal or dagesh qal (דגש קל‎, or דגש קשיין‎, also "dagesh lene", "weak/light dagesh", opposed to "strong dot") may be placed inside the consonants ב‎ bet, ג‎ gimel, ד‎ dalet, כ‎ kaf, פ‎ pe and ת‎ tav. Historically, each had two sounds: one "hard" (plosive) and one "soft" (fricative), depending on the position of the letter and other factors. When vowel diacritics are used, the hard sounds are indicated by a central dot called dagesh, while the soft sounds lack a dagesh. In Modern Hebrew, however, the dagesh only changes the pronunciation of ב‎ bet, כ‎ kaf, and פ‎ pe (traditional Ashkenazic pronunciation also varies the pronunciation of ת‎ tav, and some traditional Middle Eastern pronunciations carry alternate forms for ד‎ dalet).

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