groat /grōt (formerly gröt)/

1. An obsolete English silver coin, worth four old pence and after 1662 coined only as Maundy money (the silver fourpenny-piece, coined 1836–56, was not officially called a groat)
2. A very small sum, proverbially

• oodles
• oodlins
• oof
• oofier
• oofiest
• oofs
• ooftish
• oofy
• oogamies
• oogamous
• oogamously
• oogamy
• oogeneses
• oogenesis
• oogenetic
• oogeny
• oogonia
• oogonial
• oogonium
• ooh
• ooidal
• oolakan
• oolite
• oolites
• oolith