myciem
Myciem is the instrumental singular of the Polish noun mycie, which denotes the act of washing or cleaning. In Polish grammar, the instrumental case marks the means or instrument by which an action is performed, or it can be used to discuss a process itself in linguistic or descriptive contexts.
Origin and formation: mycie is derived from the verb myć (to wash). The noun mycie is formed
Usage: The form myciem is relatively uncommon in everyday speech and is more likely to be encountered