The Collaborative International Dictionary of English v.0.48:

Toyish \Toy"ish\, a.
   1. Sportive; trifling; wanton.
      [1913 Webster]

   2. Resembling a toy.
      [1913 Webster] -- Toy"ish*ly, adv. -- Toy"ish*ness, n.
      [1913 Webster]
      [1913 Webster]