RhymeZone: oxgang definitions

Definitions of oxgang:

noun: (historical) The area of land that could be plowed by an ox in a year, ¹⁄₈ hide or carucate and notionally 15 acres.
noun: (historical, Scotland) The similar Scottish concept, ¹⁄₈ of a ploughgate and notionally 12+¹⁄₂ or 13 Scottish acres.

(Definitions from Wiktionary)