| intubieren | intubate |
| inkubieren | incubate |
| extubieren | extubate |
| inhibieren | inhibit |
| induzieren | induce |
| integrieren | integrate |
| intendieren | intend |
| internieren | intern |
| intrigieren | intrigue cabal |
| konturieren | outline |
| Infigieren | infixation |
| undulieren | undulate |
| ennuyieren | bore annoy |
| indexieren | index |
| indizieren | index |
| infizieren | infect |
| infundieren | inject |
| inhalieren | inhale |
| initiieren | initiate |
| injizieren | inject |