| relativ | relative |
| Relativität | relativity |
| Relativsatz | relative clause |
| Delativ | delative case |
| Elativ | elative |
| Relativismus | relativism |
| relativ prim | relatively prime |
| Relais | relay |
| Relation | relation |
| relativieren | qualify relativise relativize |
| Illativ | illative case |
| regulativ | regulatory |
| Regulativ | regulation |
| Ablativ | ablative ablative case |
| Allativ | allative case |
| sedativ | sedative |
| Negativ | negative |
| negativ | negative |
| kreativ | creative |
| reaktiv | reactive |