IPA: /ɪnˈfrækt/
KK: /ɪnˈfrækt/
To break a rule or law; to violate something.
The company was fined for infracting environmental regulations.
Past: infracted
Past Participle: infracted
Infract is formed from "in-" (meaning not) and "frangere" (meaning to break). The word describes the act of breaking a rule or law, hence to infringe upon something.
Think of 'not' ('in-') breaking ('frangere') a rule — that's why infract means to break a rule.