The Collaborative International Dictionary of English v.0.48:

Suckling \Suck"ling\, n. [OE. sokeling. See Suck, v. t.]
   1. A young child or animal nursed at the breast.
      [1913 Webster]

   2. A small kind of yellow clover (Trifolium filiforme)
      common in Southern Europe.
      [1913 Webster]