prolusion /prə-, prō-looˈzhən or -lūˈ/

1. A preliminary performance, activity or display
2. An essay preparatory to a more solid treatise

• cowhages
• cowhand
• cowhands
• cowheard
• cowheel
• cowheels
• cowherb
• cowherbs
• cowherd
• cowherds
• cowhide
• cowhided
• cowhides
• cowhiding
• cowhouse
• cowhouses
• cowing
• cowish
• cowitch
• cowitches
• cowl
• cowled
• cow-leech
• cow-leeches
• cowlick