inequity vs. iniquity

inequity

[ in-ek-wi-tee ]show ipa

noun,

1. lack of equity; unfairness; favoritism or bias.
2. an unfair circumstance or proceeding.

iniquity

[ ih-nik-wi-tee ]show ipa

noun,

1. gross injustice or wickedness.
2. a violation of right or duty; wicked act; sin.