Deftness means skillfulness. Here are some sentences.
Her deftness with a needle amazes me.
I could tell he had done that often by watching his deftness as he worked.
Deftness is a sign of a talented artist.
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deftness of hand
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Athena was the patron of womanly crafts, like needlecraft and
sewing, and also of defensive warfare and strategy. Her "gifts"
would have been wisdom and a deftness of the hands.