Live compounds in two registers. Modern:
肆虐 (run rampant — typhoons, plagues, locusts),
肆意 (willfully, recklessly),
放肆 (impudent / acting without restraint),
大肆 (on a large scale, esp. propaganda or critique). Banking / contracts:
肆 is the anti-fraud capital form of
四; the literary 'shop' sense survives in
茶肆,
市肆.