au fait /ō feˈ/

1. Well-acquainted with a matter
2. Well-informed, expert (with with)

• scutch
• scutched
• scutcheon
• scutcheons
• scutcher
• scutchers
• scutches
• scutch grass
• scutching
• scutchings
• scute
• scutella
• scutellar
• scutellate
• scutellation
• scutellations
• scutellum
• scutes
• scutiform
• scutiger
• Scutigeridae
• scutigers
• scuts
• scutter
• scuttered