A new cross-search dictionary tool from Mustafa Jarrar of Birzeit University. "Linguistic Search Engine: The largest Arabic lexical database:Arabic Ontology + 150 Arabic dictionaries."
The Doha Historical Dictionary of Arabic “The Doha Historical Dictionary of Arabic aims to oversee the compilation of a historical lexicon of the Arabic language as it has developed over the last two millennia. Once completed, the final work will detail the origins of every word in its corpus and record the transformations in each word’s meaning, in addition to the location of its first appearance. To achieve this, the Doha Historical Dictionary of Arabic will rely on an extensive body of primary materials in the Arabic language, drawn from centuries of the Arabic canon.."