Collins Russian Dictionary 2nd Edition © HarperCollins Publishers 2000, 1997:
purge [pəːdʒ] n (POL) чи́стка#; (MED) слаби́тельное nt adj
vt (thoughts, mind etc) очища́ть (очи́стить*perf) (organization)
to purge (of)чи́стить*(очи́стить*perf) (от +gen) ; (extremists etc)
to purge fromвычища́ть (вы́чистить*perf) от +gen
* is used to mark translations which have irregular inflections. The Russian-English side of the dictionary gives inflectional information.
Русский: