The Collaborative International Dictionary of English v.0.48:

Godwit \God"wit\ (g[o^]d"w[i^]t), n. [Prob. from AS. g[=o]d good
   + wiht creature, wight.] (Zool.)
   One of several species of long-billed, wading birds of the
   genus Limosa, and family Tringid[ae]. The European
   black-tailed godwit (Limosa limosa), the American marbled
   godwit (Limosa fedoa), the Hudsonian godwit (Limosa
   h[ae]mastica), and others, are valued as game birds. Called
   also godwin.
   [1913 Webster]

WordNet (r) 3.0 (2006):

godwit
    n 1: large wading bird that resembles a curlew; has a long
         slightly upturned bill