| -ster | |
| —suffix forming nouns | |
| 1. | Compare -stress indicating a person who is engaged in a certain activity: prankster; songster |
| 2. | indicating a person associated with or being something specified: mobster; youngster |
| [Old English -estre] | |
| a gadget; dingus; thingumbob. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |