flagello-, flagell-

1. A source of widespread dreadful affliction and devastation; such as, that caused by pestilence or war.
2. A means of inflicting severe suffering, vengeance, or punishment.
3. A whip used to inflict punishment.
4. To afflict with severe or widespread suffering and devastation; to ravage.
5. To chastise, to punish, or to criticize severely; to excoriate; to flog.
6. Etymology: from Anglo-French escorge, back-formation from Old French escorgier "to whip"; from Vulgar Latin excorrigiare, from Latin ex-, "out, off" + corrigia, "thong, shoelace"; in this case "whip".

Although this word is not directly related to this flagello- family, it is relative to the content.

Whipped; lashed; punished severely; harassed.

1. A torturer who flogs or scourges (especially an official whose duty is to whip offenders).
2. Someone, or something, that causes great suffering or a lot of trouble.

Any of various flagellated protozoans of the subclass Zoomastigina, lacking plantlike chasracteristics.

Flagellated refers to protozoa that possess moveable threadlike or whiplike structures, or flagellum; specifically, those protozoa having flagella (plural of flagellum) or long, whip-like "tails" of certain cells in both the plant and animal kingdoms, which undulates with a regular pattern; used primarily for locomotion, and also for other purposes; such as, attracting food particles or moving substances through a "mouth" cavity. From the Latin word for "whip".