Rafe
In Hebrew orthography the rafe or raphe (Hebrew: רָפֶה, pronounced [ʁaˈfe], meaning "weak, limp") is a diacritic (⟨◌ֿ⟩), a subtle horizontal overbar placed above certain letters to indicate that they are to be pronounced as fricatives. It originated with the Tiberian Masoretes as part of the extended system of niqqud (vowel points), and has the opposite meaning of dagesh, showing that one of the letters בגדכפת is to be pronounced as a fricative and not as a plosive, or (sometimes) that a consonant is not geminated; or, as the opposite to a mappiq, to show that the letters ה or א are silent (mater lectionis).