What is eight letter word with 3rd letter o?

scorpion grounded stopping shopping shoppers stoppers spotless dropping chopping cropping crossing knotting knocking knockoff stocking growling crossbar thoughts droughts promises crowning drowning showered dropkick dropshot sporting spooking bromides choosing scooters shooters groupers grouping grouting crochets crockery droplets dropzone dropseat dropouts scorches scorched scorcher scorning storming broadens