What's the difference between dulcify and duncify?

Dulcify

Definition:

• (v. t.) To sweeten; to free from acidity, saltness, or acrimony.
• (v. t.) Fig. : To mollify; to sweeten; to please.

Example Sentences:

Duncify

Definition:

• (v. t.) To make stupid in intellect.

Example Sentences: