| Inflation | inflation |
| inflationär | inflationary |
| Infixation | infixation |
| Infektion | infection |
| Deflation | deflation |
| Inhalation | inhalation |
| Isolation | insulation isolation |
| Infestation | infestation |
| infektiös | infectious |
| Infiltration | infiltration |
| Information | information |
| Infusion | infusion |
| unflätig | foul |
| Epilation | epilation |
| Ablation | ablation amputation surgical incision surgical removal |
| Emulation | emulation |
| Kollation | collating collation |
| Ovulation | ovulation |
| Relation | relation |
| Simulation | simulation |