Webster’s Revised Unabridged Dictionary · 1913
Stour
Stour (stour or sto͞or), n. [OF. estour, estor, tumult, combat, of Teutonic origin. See Storm.] A battle or tumult; encounter; combat; disturbance; passion. [Obs.] Fairfax. "That woeful stowre." Spenser.
She that helmed was in starke stours [fierce conflicts]. Chaucer.
Stour, a. [See Stoor, a.] Tall; strong; stern. [Obs. or Prov. Eng. & Scot.]