From Proto-Finnic *hërkku. Cognates include Estonian hõrk, Karelian herkku and Votic erkku (Mati), herkku. Possibly related to herkkä.
herkku
| Inflection of herkku (Kotus type 1*A/valo, kk-k gradation) | |||
|---|---|---|---|
| nominative | herkku | herkut | |
| genitive | herkun | herkkujen | |
| partitive | herkkua | herkkuja | |
| illative | herkkuun | herkkuihin | |
| singular | plural | ||
| nominative | herkku | herkut | |
| accusative | nom. | herkku | herkut |
| gen. | herkun | ||
| genitive | herkun | herkkujen | |
| partitive | herkkua | herkkuja | |
| inessive | herkussa | herkuissa | |
| elative | herkusta | herkuista | |
| illative | herkkuun | herkkuihin | |
| adessive | herkulla | herkuilla | |
| ablative | herkulta | herkuilta | |
| allative | herkulle | herkuille | |
| essive | herkkuna | herkkuina | |
| translative | herkuksi | herkuiksi | |
| abessive | herkutta | herkuitta | |
| instructive | — | herkuin | |
| comitative | See the possessive forms below. | ||
From Proto-Finnic *hërkku. Cognates include Finnish herkku and Estonian hõrk.
herkku
| Declension of herkku (type 4/koivu, kk-k gradation) | ||
|---|---|---|
| singular | plural | |
| nominative | herkku | herkut |
| genitive | herkun | herkkuin, herkkuloin |
| partitive | herkkua | herkkuja, herkkuloja |
| illative | herkkuu | herkkui, herkkuloihe |
| inessive | herkuus | herkuis, herkkulois |
| elative | herkust | herkuist, herkkuloist |
| allative | herkulle | herkuille, herkkuloille |
| adessive | herkuul | herkuil, herkkuloil |
| ablative | herkult | herkuilt, herkkuloilt |
| translative | herkuks | herkuiks, herkkuloiks |
| essive | herkkunna, herkkuun | herkkuinna, herkkuloinna, herkkuin, herkkuloin |
| exessive1) | herkkunt | herkkuint, herkkuloint |
| 1) obsolete *) the accusative corresponds with either the genitive (sg) or nominative (pl) **) the comitative is formed by adding the suffix -ka? or -kä? to the genitive. | ||