Origin: Latin suffix -tion
Accusation has 3 different meanings across 1 category:
a formal charge of wrongdoing brought against a person; the act of imputing blame or guilt
"The lawyer vehemently denied every accusation, insisting that his client had been framed by false testimony."
an assertion that someone is guilty of a fault or offence
"the newspaper published charges that Jones was guilty of drunken driving"
The act of accusing.
"The prosecutor's sharp accusation caught the witness off guard before he could even begin his testimony."
The word "accusation" comes from the Latin accūsātiō, meaning "indictment." It entered English via Middle English and Old French in the late 14th century.