flagellate
v.
"to whip, scourge," 1620s, from Latin flagellatus, past participle of flagellare "to scourge, lash" (see flagellum). Related: Flagellated; flagellating. An earlier verb for this in English was flagellen (mid-15c.; see flail, v.).
adj.
1851, from flagellum + -ate(1).