historical dictionary
dictionary covering the historical development of forms and meanings of words
Green's Dictionary of Slang
multi-volume historical dictionary of English slang
The Arabic Historical Dictionary
Historical dictionary for the Arabic Language, including not limited to words etymology, development, and Semitic roots
Chicago Hittite Dictionary
dictionary of the Hittite language
Historical Dictionary of Science Fiction
online database
Oxford English Dictionary
premier historical dictionary of the English language
Chicago Assyrian Dictionary
dictionary of the Akkadian language
Chicago Demotic Dictionary
dictionary of the Demotic Egyptian language
Pennsylvania Sumerian Dictionary
dictionary of the Sumerian language