prochein

from The Collaborative International Dictionary of English v.0.48

Prochein \Pro"chein\, a. [F. prochain, fr. L. (assumed)
   proximanus, fr. proximus.]
   Next; nearest.
   [1913 Webster]

   {Prochein ami} or {Prochein amy}(Law), the next friend. See
      under {Next}.
      [1913 Webster]

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

PROCHEIN. Next. This word is frequently used in composition; as, prochein 
amy, prochein cousin, and the like. Co. Lit. 10.