adun

Meaning

1. down, downward

   Đā ġesēah hē swymman sċealfran on flōde, and ġelōme doppettan ādūne tō grunde, ēhtende ðearle þǣre ēa fixa.

   Then he saw loons swim in the water, and often dive down toward the bottom, eagerly chasing the fish of the river.

   Homilies of the Anglo-Saxon Church

2. in a lower place, in a low position, down, below