Genesis 25:3
וְ יָקְשָׁן יָלַד אֶת שְׁבָא וְ אֶת דְּדָן וּ בְנֵי דְדָן הָיוּ אַשּׁוּרִם וּ לְטוּשִׁים וּ לְאֻמִּים
And Snare-Layer has begotten Seven and Low-Country. And the builders of Low-Country have become Successful-ones,838 and Hammered-ones,839 and United-ones.840
| 839 | Strong’s #3912, Letushim. From latash (#3913) to hammer (an edge), sharpen, whet. Basically forged swords. |