Original sentence: Euthanasia (from Greek: ευθανασία -ευ, eu, "good", θάνατος, thanatos, "death") is the practice of terminating the life of an often terminally ill person or animal in a presumably painless or minimally painful way often for the purpose of limiting suffering
Edited sentence: Euthanasia (from Greek: ευθανασία -ευ, eu, "good", θάνατος, thanatos, "death") is the practice of terminating the life of a terminally ill person or animal in a painless or minimally painful way for the purpose of limiting suffering