Duteous vs Concerned - What's the difference?

As adjectives the difference between duteous and concerned

is that duteous is (archaic) obsequious; submissively obedient while concerned is showing concern.

(concern).

(en adjective)

(archaic) Obsequious; submissively obedient.

* 1623 , , act iv, scene 6 (First Folio ed.)

I know thee well. A ?eruiceable Villaine,
As duteous to the vices of thy Mi?tris,
As badne??e would de?ire.

* 1881 , The Heart of the Night , lines 10-14

''O Lord, the awful Lord of will! though late,

''Even yet renew this soul with duteous breath:

''That when the peace is garnered in from strife,

''The work retrieved, the will regenerate,

''This soul may see thy face, O Lord of death!

* The Oxford English Dictionary

(en adjective)

Showing concern.

There was a concerned expression on her face as I told her the news.

Involved or responsible.

The people concerned have been punished.

(head)

(concern)