c1300 in W. W. Capes (1908) 172 (MED) In campo qui dicitur le Otfeld.
1835 D. P. Thompson viii. 80 He had that morning turned the horse into the oat-field instead of the pasture.
1972 M. M. Postan (1975) iv. 57 The area under oats in Whitney fell sharply..and so it did in most other places where larger oatfields had been created in the process of reclamation.