rectify - verb

• math: determine the length of
• reduce to a fine, unmixed, or pure state; separate from extraneous matter or cleanse from impurities
• bring, lead, or force to abandon a wrong or evil course of life, conduct, and adopt a right one
• set straight or right
• make right or correct
• convert into direct current

rectify - thesaurus

amend   correct   reclaim   refine   reform   regenerate   remediate   remedy   repair   right