graylag
[
grey
-lag]
/ˈgreɪˌlæg/
noun
1.
a common, gray, wild goose,
Anser anser,
of Europe, that is the ancestor of most breeds of domestic goose.
Also,
greylag
.
Origin
1705-15;
gray
1
+
lag
1
(with reference to its habit of remaining longer in England before migrating than other species of the genus)