| ortho- | ortho- |
| Orthogon | rectangle |
| Kortholt | kortholt |
| Ort | place site location spot situation human settlement settlement inhabitant canton border roof at the side of the façade point tip awl end termination |
| Orthese | orthosis orthotic |
| Orthoepie | orthoepy |
| Ortung | localization |
| Portion | portion |
| Porto | postage |
| dorthin | there thitherward |
| fort- | away |
| orten | locate |
| orthodox | orthodox |
| Arthur | Arthur |
| Bathos | bathos |
| Method | Methodius |
| Athos | Athos |
| Litho | litho |
| Mythos | myth |
| Pathos | pathos |