The Translative Case of Intended Purpose
The translative case ending -ksi often expresses a change of state, but it is also used to express what an object is intended to be used as.
When you choose, buy, or save an object for a specific purpose, the word for that intended role takes the -ksi ending (translating to "as a..." or "for a...").
| I chose this cheaper spring as a spare part for the mechanism. | Valitsin tämän halvemman jousen mekanismin varaosaksi. |
For multiple items, the plural marker -i- goes right before the -ksi ending:
| The experienced watchmaker bought these old cogwheels as spare parts. | Kokenut kelloseppä osti nämä vanhat rattaat varaosiksi. |
Specifying the Target
To specify what a part belongs to, put the target object (like the clock) in the genitive case and its intended role (like the pendulum) in the translative case.
| We saved this heavy part to be the older clock's pendulum. | Säästimme tämän painavan osan vanhemman kellon heiluriksi. |
| The watchmaker is looking for suitable metal for the dial and the clock hand. | Kelloseppä etsii sopivaa metallia kellotauluksi ja viisariksi. |
| We didn't buy this metal to be the new clock's spring at all. | Emme ostaneet tätä metallia lainkaan uuden kellon jouseksi. |
Abstract Purposes
This structure is also used for abstract roles, such as giving something as a gift (lahjaksi).
| I gave this small cogwheel and clock hand to grandfather as a gift. | Annoin tämän pienen rattaan ja viisarin isoisälle lahjaksi. |
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