| Suffix appended to words to create a masculine noun, usually denoting a performer, feature, human relation, result of an action, object, diminutive or a proper name. |
| Suffix appended to the present stem of verbs to form an adjective denoting a feature or a dimension. |
| glad (“to smooth”) + -ak → gladak (“smooth”). |
| ljub (“to love”) + -ak → ljubak (“amiable”). |
| Proto-Slavic *plyti + -ak → plitak (“shallow”). |
