actionary

from The Collaborative International Dictionary of English v.0.48
Actionary \Ac"tion*a*ry\, Actionist \Ac"tion*ist\, n. [Cf. F.
   actionnaire.] (Com.)
   A shareholder in joint-stock company. [Obs.]
   [1913 Webster]
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
ACTIONARY. A commercial term used among foreigners, to signify stockholders.
    

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