~하여 is not a single pattern
의거하여 >> 의거하(다) + 어/아 > 의거하여 > 의거해
의거하다 : be based on
어/아 : connecting particle (여 is a variation of 어/아 after 하다 verb)
Also, refer to https://www.italki.com/question/268556
자료에 의거하여 결정을 할 수 있다
I can make a decision based on the data.
October 25, 2017
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