quelled

It does, however, appear to have quelled any concerns about whether Henson will return for a fourth season.

The associate warden issued riot gear and masks to the guards, who quelled the riot with tear gas, pepper spray, and “flash stun” and “multi blast” grenades, the document says.

But a tough opening to his tenure, which included two heavy defeats by Belgium and four-goal loss in Russia, quelled optimism.

The BBC's Frank Gardner reported in June that intelligence-sharing between police forces and security agencies had largely quelled IS's co-ordinated attacks in European cities.

How fast that is quelled and how effective it is remains to be seen.