| 1. | a prehistoric cave dweller. |
| 2. | a person of degraded, primitive, or brutal character. |
| 3. | a person living in seclusion. |
| 4. | a person unacquainted with affairs of the world. |
| 5. | an animal living underground. |
glē a gnawed hole; cf. trogon ) + dý(ein) to creep into + -tēs agent suffix