See also the home page of the Texts and Translations book series Publications of the Modern Humanities Research Association

8An Anglo-Norman Dictionary
Edited by Louise W. Stone, T. B. W. Reid, and William Rothwell1 January 1977
17An Anglo-Norman Dictionary. Second Edition. A-E
General Editor: William Rothwell. Edited by Stewart Gregory, William Rothwell and David Trotter, with the assistance of Michael Beddow, Virginie Derrien, Geert de Wilde, Lisa Jefferson and Andrew Rothwell1 January 2005