IPA: /ɪnˈdaɪtmənt/
KK: /ɪnˈdaɪtmənt/
A formal written accusation that someone has committed a crime, usually presented by a grand jury.
The grand jury issued an indictment against the suspect after reviewing the evidence.
Indictment is formed from "in-" (meaning not) and "dicere" (meaning to say or declare). The term originally referred to a formal declaration or statement of charges against someone, indicating that they are being accused of a crime.
Think of 'declaring' something ('dicere') in a formal way, and remember that an indictment is a formal statement of accusation.