You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Somalis

Context:
The Xeer legal system is assumed to have developed exclusively in the Horn of Africa since approximately the 7th century. There is no evidence that it developed elsewhere or was greatly influenced by any foreign legal system. The fact that Somali legal terminology is practically devoid of loan words from foreign languages suggests that Xeer is truly indigenous.

Question:
What fact about Somali legal terms implies that Xeer developed locally?

devoid of loan words