-ksi

From Proto-Finnic *-ksi, from Proto-Uralic *-kse. Related to Erzya -кс (-ks, translative suffix) and Moksha -кс (-ks, translative suffix).

-ksi (with a possessive suffix -kse-)

1. used to form the translative case

   hakata ananas murskaksi ― to beat a pineapple to pulp

2. used to form the long first infinitive, with the meaning "in order to"; always used with a possessive suffix

   ostaakseen ― in order to buy

• Appended to the genitive singular stem.
• See the appendix on Finnish nominal cases for more information on how the translative case is used.

• -ks (colloquial)
• -x (obsolete)
• -xi (obsolete)

Probably re-extracted from other words ending in -ksi.

-ksi (slang)

1. Forms nouns, chiefly from clippings.

• kis