The Collaborative International Dictionary of English v.0.48:

Sirupy \Sir"up*y\, Syrupy \Syr"up*y\, a.
   Like sirup, or partaking of its qualities. --Mortimer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Syrup \Syr"up\, n., Syrupy \Syr"up*y\, a. [See Sirup.]
   Same as Sirup, Sirupy.
   [1913 Webster]

WordNet (r) 3.0 (2006):

syrupy
    adj 1: overly sweet [syn: cloying, saccharine, syrupy,
           treacly]
    2: having a relatively high resistance to flow [syn: syrupy,
       viscous]
    3: with honey added [syn: honeyed, honied, syrupy]