Retunes vs Retunds - What's the difference?

As verbs the difference between retunes and retunds

is that retunes is (retune) while retunds is (retund).

(head)

(retune)

To tune again.

After the long first movement, the orchestra had to retune.

* * * *

(head)

(retund)

(en verb)

To blunt; to turn, as an edge.

(figuratively) To cause to be obtuse or dull.

to retund confidence

(Webster 1913)