Collaterally

Col·lat·er·al·ly

Collaterally

adv.
  1. Side by side; by the side.
    These pulleys . . . placed collaterally.
    — Bp. Wilkins.
  2. In an indirect or subordinate manner; indirectly.
    The will hath force upon the conscience collaterally and indirectly.
  3. In collateral relation; not lineally.