Revival of the Hebrew language well-recognized sources, chiefly the Tanakh (especially those portions used liturgically like the Torah, Haftarot, Megilot, and the Book of Psalms) and the Mishnah. Apart from these, Hebrew was known through hymns, prayers, midrashim, and the like. During the Middle Ages, Hebrew continued in use as a written language in Rabbinical literature, including in judgments of Halakha, Responsa, and books of meditation. In most cases, certainly in the base of Hebrew's revival, 18th- and 19th-century Europe, the use of Hebrew was not at all natural, but heavy in flowery language and quotations, non-grammatical forms, and mixing-in of other languages, especially Aramaic.
Academy of the Hebrew Language system, the Hebrew Language Committee published bulletins and dictionaries. It coined thousands of words that are in everyday use today. Its successor, the Academy of the Hebrew Language, has continued this mission of creating new Hebrew words to keep up modern usage. Although the academy's business is creating new words from Hebrew roots and structures to replace loanwords derived from other languages, its own name is a loanword, "akademya." It addresses this irony on its English website. The Academy's mission, as defined in its constitution, is "to direct the development of Hebrew in light of its nature" (לכוון את דרכי