| Part of speech | unknown part of speech |
|---|
| Singular | Plural | |
|---|---|---|
| Nominative | akva | akvaj |
| Accusative | akvan | akvajn |
| Catalan | aquàtic |
|---|---|
| Czech | vodní |
| Dutch | aquatisch; waterhoudend; waterig |
| English | aquatic; water; of water; watery; aqueous |
| French | aquatique; aqueux; d’eau |
| German | Wasser‐; wasserartig; wässerig; wäßrig |
| Greek | υδρόβιος |
| Icelandic | vatna; vatns‐ |
| Italian | acquatico |
| Latin | aqualis; aquarius |
| Polish | wodny |
| Portuguese | aquático; aquoso |
| Russian | водяный; водный; водяной |
| Spanish | acuático; acuátil; de agua |
| Swedish | vatten‐ |