Question

sort the words according to the meanings of their shared roots. homicide comparison parallel fratricide herbicide pesticide kill beside

Explanation:

The suffix "-cide" means kill. "Homicide" is killing of a human, "fratricide" is killing of a brother, "herbicide" is for killing plants, "pesticide" is for killing pests. "Parallel" and "comparison" have no relation to "kill" and are not related to the "beside" - related root either. There are no words related to "beside" in the given list.

Answer:

kill: homicide, fratricide, herbicide, pesticide
beside: (empty)