outflank

• out-flank

out- +‎ flank

outflank (third-person singular simple present outflanks, present participle outflanking, simple past and past participle outflanked)

1. (transitive) To maneuver around and behind the flank of (an opposing force).
2. (transitive) To gain a tactical advantage over (a competitor, for example).
   • 1977, Desmond Christopher Martin Platt, Business Imperialism, 1840-1930, page 148:

     Unscrupulous members offered special discounts, illegal rebates, and unauthorized underquotations to outflank their conference partners, and blamed their agents or 'invented' competition to justify these tactics.

• Faulkton