At one

At one
  1. In concord or friendship; in agreement (with each other); as, to be, bring, make, or set, at one, i. e., to be or bring in or to a state of agreement or reconciliation.
    If gentil men, or othere of hir contree Were wrothe, she wolde bringen hem atoon.
  2. Of the same opinion; agreed; as, on these points we are at one.
  3. Together. [Obs.]