Q. Is there a Greek lexicon called BDAG?

BDAG is an abbreviation for the editors/translators (Bauer-Danker-Arndt-Gingrich) of A Greek-English lexicon of the New Testament and other early Christian literature / revised and edited by Frederick William Danker. It is the most comprehensive and authoritative lexicon of NT Greek. 

Luther Seminary Library keeps one copy of the BDAG in the reference collection (PA881 .B323 Ref.) and has one copy available for borrowing. An electronic, user-friendly version of BDAG is also available on the Library's public access computers #1 and #2, as part of the library's Accordance software license.