the world > action or operation > harm or detriment > hostile action or attack > make attack [verb (intransitive)] > persecute (3)
intransitive with at (in same sense). Obsolete.
transitive. To conduct a campaign to identify and persecute (a person or group) considered to be undesirable due to their views or activities. Cf…
intransitive. To conduct or participate in a campaign to identify and persecute a person or group considered to be undesirable by virtue of their…