IPA: /ˌdɪsəˈvaʊəl/
KK: /dɪsəˈvaʊəl/
A statement in which someone says they do not know about something or are not responsible for it.
His disavowal of the agreement surprised everyone involved.
Disavowal → It is formed from "dis-" (meaning apart or away) and "avow" (from Old French *avouer*, meaning to acknowledge or confess). The word "disavowal" means the act of denying or rejecting a previous acknowledgment or confession.
Think of 'dis-' meaning apart and 'avow' meaning to acknowledge — so disavowal is the act of rejecting an acknowledgment.