| infinitesimal | infinitesimal |
| Infinitismus | infinitism |
| Infinitesimalrechnung | infinitesimal calculus |
| Infinitiv | infinitive |
| Infinität | uncertainty |
| Planetesimal | planetesimal |
| Infanterie | infantry |
| Infanterist | foot soldier footman infantryman |
| Infantilität | childishness |
| Infinitivsatz | infinitive clause |
| infantil | infantile |
| Initial | initial |
| initial | initial incipient |
| Ministerial | ministerial |
| nächstes Mal | next time |
| intestinal | intestinal enteral |
| vigesimal | vigesimal |
| sintemal | since |
| Infektiosität | infectiousness |
| Infigieren | infixation |