purify vs modify

purify and modify both are verbs.

Word	Noun	Adjective	Verb	Adverb
purify	No	No	Yes	No
modify	No	No	Yes	No

As verbs, modify is a hypernym of purify; that is, modify is a word with a broader meaning than purify:

Other hypernyms of purify include alter, change.

purify (verb)	modify (verb)
remove impurities from, increase the concentration of, and separate through the process of distillation	make less severe or harsh or extreme
make pure or free from sin or guilt	add a modifier to a constituent
become clean or pure or free of guilt and sin	cause to change; make different; cause a transformation