hiekaksi
Hiekaksi is a translative form in Finnish grammar derived from the noun hiekka, meaning sand. The translative case, marked with the suffix -ksi, expresses a change of state or transformation into something. Consequently, hiekaksi is used to denote that something becomes or is turned into sand.
The form is most often found in clauses with verbs of change, notably muuttua (to become) and,
Formation and usage notes: hiekaksi attaches to the base form of hiekka to indicate a shift into
See also: Translative case, Finnish grammar, and change-of-state constructions in Finnish.
In sum, hiekaksi is the Finnish translative form signaling that something becomes sand, a grammatical tool