1) To split or cleave wood with iron wedges and malls or mells, found most commonly as a past participle.
1457 pro c long revyn burdes, York
c.1565 certayne Isshies [ashes?] … which was reyvenn for Sparis, Pickering
1580 payd to William Watson for ryvinge of wodde, Stockeld
1648 Thomas Milnes who riv mee some staves for pitchforks, Thurlstone
1694 Paid to Robt Wiggon for riving Lattes, Conistone.