Varjoilla
Varjoilla is the plural adessive form of the Finnish noun varjo, meaning "shadow" or "shade." In Finnish, the adessive case (suffix -lla/-llä) marks location on or with something. Therefore varjoilla translates roughly to "on the shadows" or "with the shadows" when referring to more than one shadow. The singular adessive form is varjolla (on the shadow). The word often appears in descriptive or literary contexts and is less common in everyday speech, where varjoissa (in the shadows) is typically used for location.
Etymology and form: varjo ("shadow") + -lla to create the adessive form; in the plural, the suffix
Usage and nuance: Varjoilla can be used to describe literal spatial relations in which something is situated