Artificial intelligent assistant

sow-iron

sow-iron Obs.
  [f. sow n.1 6.]
  Sow-metal. Cf. pig-iron.

1608 H. Wright in Lismore Papers Ser. ii. (1887) I. 127 For the remainder of sowe iron nowe Restinge, there is litle or noe barre Iron made thereof. 1645–52 Boate Ireland's Nat. Hist. (1860) 115 One Tun whereof [sc. of merchants-iron] is usually made out of a Tun and a half of Sow-Iron. 1677 A. Yarranton Eng. Impr. 57 There is yet a most great benefit to the Kingdom in general by the Sow Iron made of the Iron Stone and Roman Cinders in the Forest of Dean. 1709 Hearne Collect. 15 Feb. (O.H.S.) II. 170 The sow Iron [is] the best in the..world.

Oxford English Dictionary

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