to relieve from a charge of fault or crime; declare not guilty: They acquitted him of the crime. The jury acquitted her, but I still think she's guilty.
2.
to release or discharge (a person) from an obligation.
3.
to settle or satisfy (a debt, obligation, claim, etc.).
4.
to bear or conduct (oneself); behave: He acquitted himself well in battle.
5.
to free or clear (oneself): He acquitted himself of suspicion.
Origin: 1200–50; Middle English aquiten < Anglo-French, Old French a(c)quiter, derivative, with a(c)- ac-, of quite free of obligations < Medieval Latin quit(t)us,Latin quiētusquiet1; compare quit
Related forms
ac·quit·ter, noun
pre·ac·quit, verb (used with object), -quit·ted, -quit·ting.
early 13c., "to satisfy a debt" (either for oneself or on behalf of another), from O.Fr. acquitter "settle a claim," from à "to" + quite "free, clear" (see quit). Meanings "set free from charges" and "to discharge one's duty" both recorded from late 14c.