| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | mentolo | mentoloj |
| Accusative | mentolon | mentolojn |
| Catalan | mentol |
|---|---|
| Danish | mentol |
| Dutch | menthol |
| English | menthol |
| Finnish | mentoli |
| French | menthol |
| German | Menthol |
| Hungarian | mentol |
| Italian | mentolo |
| Malay | mentol |
| Polish | mentol |
| Portuguese | mentol |
| Romanian | mentol |
| Russian | ментол |
| Spanish | mentol |
| Swedish | mentol |
| Thai | เมนทอล |
| Welsh | menthol |