yhdelle
Yhdelle is the allative form of the Finnish cardinal number yksi (one). In Finnish grammar the allative case, marked with the suffix -lle, indicates direction toward or for a recipient. Yhdelle is used when the recipient is a single entity, and it forms part of a broader set of numerals in the allative, such as kahdelle, kolmelle, neljälle, and so on.
The primary use of yhdelle is to specify a single recipient or target in expressions of allocation,
In relation to other case forms of the number, yhdelle contrasts with the genitive form kuten “yhden”