graylag

[ grey-lag ]

/ ˈgreɪˌlæg /

a common, gray, wild goose, Anser anser, of Europe, that is the ancestor of most breeds of domestic goose.

Words nearby graylag

1705–15; gray¹ + lag¹ (with reference to its habit of remaining longer in England before migrating than other species of the genus)

The graylag goose which breeds in the British Isles, seems to be the ancestor of the domestic geese that we see in every farmyard.
The Animal World, A Book of Natural History|Theodore Wood