inter「間」を意味するラテン語の接頭辞
medius「中間の」を意味するラテン語
15世紀初頭に「midmost」から派生したもので、「mid-」と「-most」を組み合わせたものです。/ˌin(t)
The city is located in an intermediate position between the two rivers.
The student has an intermediate level of knowledge about the subject.
We stopped at an intermediate station during our journey.