Unknown. There are no known cognates, and theories about borrowing from Germanic or Baltic have been discarded.
rahtu
Nowadays mostly used in idioms, such as the one mentioned above.
| Inflection of rahtu (Kotus type 1*F/valo, t-d gradation) | |||
|---|---|---|---|
| nominative | rahtu | rahdut | |
| genitive | rahdun | rahtujen | |
| partitive | rahtua | rahtuja | |
| illative | rahtuun | rahtuihin | |
| singular | plural | ||
| nominative | rahtu | rahdut | |
| accusative | nom. | rahtu | rahdut |
| gen. | rahdun | ||
| genitive | rahdun | rahtujen | |
| partitive | rahtua | rahtuja | |
| inessive | rahdussa | rahduissa | |
| elative | rahdusta | rahduista | |
| illative | rahtuun | rahtuihin | |
| adessive | rahdulla | rahduilla | |
| ablative | rahdulta | rahduilta | |
| allative | rahdulle | rahduille | |
| essive | rahtuna | rahtuina | |
| translative | rahduksi | rahduiksi | |
| abessive | rahdutta | rahduitta | |
| instructive | — | rahduin | |
| comitative | See the possessive forms below. | ||