Hitchcock’s Bible Names Dictionary (1869) gives the meaning of names in the Bible from the original languages as well as other information.
Trench’s Classic work, Synonyms of the New Testament, is a study of Greek synonyms in the New Testament, showing their similarities and differences.
Green Greek English Lexicon
This is an old dictionary of Christianity in which a lot of unused (in modern speech) terms are defined. Over 1500 entries.
Hebrew/Greek Synonym Dictionary is a dictionary module showing the Hebrew to English or Greek to English root words.
Wuest Dictionary
Heresies of the Church Thru the Ages
Feathers for Arrows was Spurgeon’s personal scrapbook of anecdotes and illustrations. Those astute in Spurgeon’s writings will even recognize a few illustrations found in Spurgeon’s own published sermons. Spurgeon mentioned Feathers for Arrows in his special lectures on the use of anecdotes, part of his Lectures. Description from ebay.com
Gaebelein Dictionary of Proper Names gives a simple definition of each name in the Bible in this dictionary 415 entries.
Topical Bible Dictionary