As a noun derns
is plural of dern.
As a verb werns is
third-person singular of wern.
derns
English
Noun
(head)
werns
English
Verb
(head)
(wern) wern
English
Verb
(
en verb)
(obsolete) To refuse.
- He is too great a niggard that will wern / A man to light a candle at his lantern. — Chaucer.
(
Webster 1913)