probably from H5719 in the original sense of slender (i.e. a spear); his spear; Adino.
Usages throughout the bible
2 Samuel 23:8
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These be the names of the mighty men whom David had: The Tachmonite that sat in the seat, chief among the captains; the same was Adino H5722 the Eznite: he lift up his spear against eight hundred, whom he slew at one time.
