esquire n[Middle French escuier squire, from Late Latin scutarius shield bearer, from Latin scutum shield]
used as a title of courtesy for lawyers usually placed in its abbreviated form after the name and capitalized
[John R. Smith Esq. ]
[Jane L. Smith Esq. ]
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.