Avi K. wrote ” ???? means conquer.here are some proofs: ….”
Lareshet may mean to conquer, BUT in the context of that comment of the Ramban, it clearly does not. As I mentioned, the Ramban uses Kovesh -conquer – 11 times when talking about the Yishuv haArets. But he drops that expression when talking about today. Instead he uses Lareshet in contradistinction to Kovesh. Furthermore, he say Kol Ehad – i.e. not the Tsibbur.
AFAIK The difference between Nachala and Yerusha is that nachala come from the word nachal. A river flows naturally. OTOH, a yerusha needs work; it’s not automatic. Sometimes that work may include war, but not in this case according to the Ramban.