3 adverbs to describe how to burthen

These are generally not more than one half, frequently less than a third, of the whole number of negroes resident on the estate; consequently a very considerable burthen has been removed from the planter.

He has a good es[tate], considerably burthened by settlements, and he is himself in debt.

As the brave eagle does with sorrow see The forest wasted, and that lofty tree Which holds her nest about to be o'erthrown, Before the feathers of her young are grown, She will not leave them, nor she cannot stay, But bears them boldly on her wings away; So fled the dame, and o'er the ocean bore Her princely burthen to the Gallic shore.

3 adverbs to describe how to  burthen  - Adverbs for  burthen