a more intriguing possible origin,however, dates back to the 17th century, when to have cold feet meant to have no money, probably referring to someone being so poor as to lack shoes.

위 문장에서
1. ,probablay referring 부분 해석은, 분사구문으로 ~가리키면서라고 하나요?

2. 그리고 someone 다음에 being은 왜 being 인가요? 이것도 분자구문같긴한데...