[1] : The Collaborative International Dictionary of English v.0.48

pecuniary \pecun"iary\ p-ek=un"yaslri^ly^, a.
   l. pecuniarius, fr. pecunia money, orig., property in
   cattle, fr. pecus cattle: cf. f. p'ecuniaire. see fee,
   and cf. peculiar.
   1. relating to money; monetary; as, a pecuniary penalty; a
      pecuniary reward. --burke.
      1913 webster
see also:
fee peculiar 

[2] : WordNet (r) 2.0

pecuniary
     adj : relating to or involving money; "monetary rewards"; "he
           received thanks but no pecuniary compensation for his
           services" syn: monetary
see also:
monetary 

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

pecuniary. that which relates to money. 
     2. pecuniary punishment, is one which imposes a fine on a convict; a 
pecuniary legacy is one which entitles the legatee to receive a sum of 
money, and not a specific chattel. in the ecclesiastical law, by pecuniary 
causes is understood such causes as arise either from the withholding 
ecclesiastical dues, or the doing or omitting such acts relating to the 
church, in consequence of which damage accrues to the plaintiff. in england 
these causes are cognizable in the ecclesiastical courts. 

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