| epigonal | epigon |
| Epigonin | epigone |
| Epigone | epigone |
| trigonal | trigonal |
| Epicönum | epicene |
| agonal | agonistic agonal |
| diagonal | diagonal |
| hexagonal | hexagonal |
| optional | optional |
| regional | regional |
| saisonal | seasonal |
| Original | original |
| original | original |
| Signal | signal |
| spinal | spinal |
| Epidot | epidote |
| Epikoinon | epicene |
| Epilog | epilogue |
| Episkopat | episcopate |
| Epithel | epithelium |