•
Taj al-Lugha wa Sihah al-Arabiya () "The Crown of Language and the Correct Arabic" - His magnum opus dictionary of Arabic; often abbreviated as
al-Sihah fi al-Lugha, "The Correct Language", and
al-Sihah (). It contains about 40,000 dictionary entries. Written in Nishapur, it was incomplete at his death and completed by a student. Al-Jawhari uses an alphabetical ordering system with the last letter of a word's root being the first ordering criterion.
Al-Sihah is a principal Arabic dictionary of the medieval era and later compilers of Arabic dictionaries incorporated its material. Over the centuries several abridgements and elaborations in Arabic were produced and a large portion was copied into the huge 13th century dictionary compilation
Lisan al-Arab; published online at http://www.baheth.info . A fully searchable online edition available at Baheth.info . • Edition begun by E. Scheidius with a Latin translation, but one part only appeared at
Harderwijk (1776). In 1729
Ibrahim Muteferrika's Arabic-Turkish dictionary, based on Jawhari's, became the first book to be printed by the
printing press of
Ottoman era. ==References==