corners of a field; edges of a field
Refers to the far corners or edges of a field, often with a slightly poetic or literary feel. Not an everyday word; more common in written descriptions or place names.
A small shrine stood quietly at the edge of the field.
At the corners of the autumn field, pampas grass sways in the wind.
野辺 is a classical/poetic word for a field or meadow in general (often associated with funerals, as in 野辺送り), whereas 野末 specifically means the distant edge of a field.
Compound of 野 (の, 'field') and 末 (ずえ, 'end, edge'). The reading ずえ is a rendaku form of すえ. The exact historical derivation is uncertain, but the word has been used in classical and literary Japanese.