sweeten

verb

1. 1

   To make sweet to the taste.

   “to sweeten tea”

2. 2

   To make (more) pleasant or to the mind or feelings.

   “to sweeten friendship”

3. 3

   To make mild or kind; to soften.

   “to sweeten the temper”

4. 4

   To make less painful or laborious; to relieve.

   “to sweeten the cares of life”

5. 5

   To soften to the eye; to make delicate.

6. 6

   To make pure and salubrious by destroying noxious matter.

   “to sweeten rooms or apartments that have been infected”

7. 7

   To make warm and fertile.

   “to dry and sweeten soils”

8. 8

   To restore to purity; to free from taint.

   “to sweeten water, butter, or meat”

9. 9

   To make more attractive; said of offers in negotiations.

10. 10

    To become sweet.