Burthen is a 7 letter English word. It's valid Scrabble word worth 12 points. It's valid Words with friends word worth 14 points.
You can make 155 anagrams from letters in burthen (behnrtu).
This is the burthen and message of the whole passage (verses 11-18).
Well, I suppose you are aware of this much: corn is threshed by beasts of burthen?
You cannot help feeling that they are costly to you, and they must see that you find them a burthen?
Here tears relieved her from a part of that burthen, which was before insupportable.
But Atoacan was alone, and life soon became a burthen to him.
Nor did her gun-deck appear to me particularly roomy for her burthen.
She asked no other question, however, and left the burthen of the silence with me.
He had two vessels—one of some burthen, the other a pinnace of thirty tons.
Chilian directed the two men, who found it still quite a burthen.
Idle Richard is a burthen to himself, and scorned by everybody.