Possibly derived from some medieval Germanic given name (Low German Lein, Leineke), but often interpreted as leino (“sad”), and for that reason adopted by many Finns with Swedish surnames in the late 19th and early 20th centuries.
Leino
| Inflection of Leino (Kotus type 1/valo, no gradation) | |||
|---|---|---|---|
| nominative | Leino | Leinot | |
| genitive | Leinon | Leinojen | |
| partitive | Leinoa | Leinoja | |
| illative | Leinoon | Leinoihin | |
| singular | plural | ||
| nominative | Leino | Leinot | |
| accusative | nom. | Leino | Leinot |
| gen. | Leinon | ||
| genitive | Leinon | Leinojen | |
| partitive | Leinoa | Leinoja | |
| inessive | Leinossa | Leinoissa | |
| elative | Leinosta | Leinoista | |
| illative | Leinoon | Leinoihin | |
| adessive | Leinolla | Leinoilla | |
| ablative | Leinolta | Leinoilta | |
| allative | Leinolle | Leinoille | |
| essive | Leinona | Leinoina | |
| translative | Leinoksi | Leinoiksi | |
| abessive | Leinotta | Leinoitta | |
| instructive | — | Leinoin | |
| comitative | See the possessive forms below. | ||