Decurt vs Decunt - What's the difference?

As verbs the difference between decurt and decunt

is that decurt is (obsolete) to cut short; to curtail while decunt is (vulgar|rare) to remove one's penis from a vagina.

(en verb)

(obsolete) To cut short; to curtail.

(Bale)

(Webster 1913)

(en verb)

(vulgar, rare) to remove one's penis from a vagina

*uncunt