Retund vs Retuned - What's the difference?

As verbs the difference between retund and retuned

is that retund is to blunt; to turn, as an edge while retuned is (retune).

(en verb)

To blunt; to turn, as an edge.

(figuratively) To cause to be obtuse or dull.

to retund confidence

(Webster 1913)

(head)

(retune)

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To tune again.

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

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