JLPT2 G6 S15 F662
豦 is 虍 tiger + 豕 pig/boar → boar likened to a tiger in ferocity. A scribal form character combines 豦# + 力 power/energy → *fierce*/swift activity → *severe*; *rapid*. *Drama* and (theatrical) *play* are borrowed meanings. 力 eventually came to be written 刀.
[Full Kanji Etymology List]