Does the word "order" refers to "reign" or "system", instead of "sequence"?
Native speaker’s answer
Rebecca
Actually, you have to look at it as a whole expression - not “order” by itself, but “in order to.” “In order to” has the exact same meaning as “to” (to do an action). The only difference between the two is that “in order to” adds formality and length to a sentence. Ex: You need to turn the knob in order to turn on the machine. (You need to turn the knob to turn on the machine.) Ex: In order to graduate, I must pass all my exams. (To graduate, I must pass all my exams.)