An archaic or poetic form of 'between,' showing position or relationship between two things.
From Old English 'atweona' or 'betwēonum,' combining 'at-' + 'tween' (two), from 'twain.' The prefix 'at-' intensified spatial meaning.
Medieval and early modern writers loved 'atween'—it appears in Chaucer and Middle English texts as the sophisticated way to say 'between.'
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