The Collaborative International Dictionary of English v.0.48:

Amy \A*my"\, n. [F. ami, fr. L. amicus.]
   A friend. [Obs.] --Chaucer.
   [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

AMY or ami, a French word, signifying, friend. Prochein amy, (q.v.) the
next friend. Alien amy, a foreigner, the citizen or subject of some friendly
power or prince.