regurgitation (n.)

c. 1600, "act of pouring or rushing back," chiefly medical (of blood, digestive fluid, etc.), from Medieval Latin regurgitationem (nominative regurgitatio), noun of action from past-participle stem of regurgitare "to overflow," from re- "back" (see re-) + Late Latin gurgitare "engulf, flood" (found in Latin ingurgitare "to pour in"), from gurges "whirlpool, gorge, abyss" (see gurges).