Originally probably a pun. Literally outo (“strange”) + kumpu (“hill”). As proper noun Outokumpu is also a stainless steel and mining company and a former copper-mining town.
outokumpu (rare)
| Inflection of outokumpu (Kotus type 1*H/valo, mp-mm gradation) | ||||
|---|---|---|---|---|
| nominative | outokumpu | outokummut | ||
| genitive | outokummun | outokumpujen | ||
| partitive | outokumpua | outokumpuja | ||
| illative | outokumpuun | outokumpuihin | ||
| singular | plural | |||
| nominative | outokumpu | outokummut | ||
| accusative | nom. | outokumpu | outokummut | |
| gen. | outokummun | |||
| genitive | outokummun | outokumpujen | ||
| partitive | outokumpua | outokumpuja | ||
| inessive | outokummussa | outokummuissa | ||
| elative | outokummusta | outokummuista | ||
| illative | outokumpuun | outokumpuihin | ||
| adessive | outokummulla | outokummuilla | ||
| ablative | outokummulta | outokummuilta | ||
| allative | outokummulle | outokummuille | ||
| essive | outokumpuna | outokumpuina | ||
| translative | outokummuksi | outokummuiksi | ||
| abessive | outokummutta | outokummuitta | ||
| instructive | — | outokummuin | ||
| comitative | See the possessive forms below. | |||