trilby /trilˈbi/

1. A soft felt hat with an indented crown and narrow brim (also trilby hat)
2. (in pl) feet (slang)

• foolery
• fool-happy
• foolhardier
• foolhardiest
• foolhardiness
• foolhardise
• foolhardize
• foolhardy
• fooling
• foolings
• foolish
• foolisher
• foolishest
• foolishly
• foolishness
• foolishnesses
• foolish-witty
• foolproof
• fools
• fool's cap
• foolscap
• fool's caps
• foolscaps
• fool's errand
• fool's errands