keu- + -hko, most likely a diminutive derivative of the same root as kevyt, keveä (“light”). For the phonetic development, compare köykäinen (the variant kouhko is found in some eastern dialects); for semantic parallels, compare English lights (“lungs”), Russian лёгкое (ljóxkoje, “lung”), Northern Sami geahpis (“lung”).
keuhko
| Inflection of keuhko (Kotus type 1/valo, no gradation) | |||
|---|---|---|---|
| nominative | keuhko | keuhkot | |
| genitive | keuhkon | keuhkojen | |
| partitive | keuhkoa | keuhkoja | |
| illative | keuhkoon | keuhkoihin | |
| singular | plural | ||
| nominative | keuhko | keuhkot | |
| accusative | nom. | keuhko | keuhkot |
| gen. | keuhkon | ||
| genitive | keuhkon | keuhkojen | |
| partitive | keuhkoa | keuhkoja | |
| inessive | keuhkossa | keuhkoissa | |
| elative | keuhkosta | keuhkoista | |
| illative | keuhkoon | keuhkoihin | |
| adessive | keuhkolla | keuhkoilla | |
| ablative | keuhkolta | keuhkoilta | |
| allative | keuhkolle | keuhkoille | |
| essive | keuhkona | keuhkoina | |
| translative | keuhkoksi | keuhkoiksi | |
| abessive | keuhkotta | keuhkoitta | |
| instructive | — | keuhkoin | |
| comitative | See the possessive forms below. | ||