betwixt         
uk/bɪˈtwɪkst/ us/bɪˈtwɪkst/
 old use在…之间 
between
  I have made trouble betwixt us both. 我在我们两人之间制造了麻烦。 
 betwixt and between 在中间;模棱两可;非此非彼;犹豫不决
between two positions, choices, or ideas; not really one thing or the other
  We stand betwixt and between, part of Europe but with closer ties to the US.
 At this age, you're betwixt and between - more than a child, yet not fully adult.
 We're betwixt and between, neither here nor there.
 These are the betwixt and between days, the old year ending but the new year not yet begun.