The prefix would be epi-, as in epidermis. (The outer layer of skin)
Answer: Wicked or evil behavior
Explanation:
In the end of the short story "The Old Chief Mshlanga", the girl's father decides to keep the twenty goats that trampled down his land. This decision deeply affected Chief Mshlanga's people, since these goats belonged to them, and not having them would mean that they would go hungry when the dry season begins. Thus, it was selfish from him to keep the goats.
As with any author's decision to use 1st person, her intention most likely -- in this story -- was to get her readers to go along for the ride into madness and cultivate a certain amount of sympathy for the narrator and her plight. The constant use of "I" puts readers in the narrator’s head and allows them to empathize with her.