Where does “mäennyppylä” come from?

mäennyppylä (Finnish) comes from Finnish nyppylä, from Finnish la, from Finnish lauantai, from Old Norse laugardagr, from Old Norse laug, from Proto-Germanic laugō, from Proto-Indo-European lewh₃- — to wash.

mäennyppylä (Finnish): hillock, hummock, mound

Definitions

hillock, hummock, mound

Ancestry of “mäennyppylä”, step by step

mäennyppylä traces back through two separate lines of ancestry.

via Finnish nyppylä

Step	Language	Word	Meaning
1	Finnish	nyppylä	A small hill
2	Finnish	la	Abbreviation of lauantai
3	Finnish	lauantai	Saturday
4	Old Norse	laugardagr	Saturday
5	Old Norse	laug	bath; hot spring; first-person singular past...
6	Proto-Germanic	laugō	bath, wash; soap, lye
7	Proto-Indo-European	lewh₃-	to wash

via Finnish Mäki

Step	Language	Word	Meaning
1	Finnish	Mäki	Any of a number of small places in Finland
2	Finnish	-lä	Front vowel variant of -la
3	Finnish	-as	Forms some adjectives; Forms some nouns
4	Proto-Finnic	-s	Forms nouns
5	Proto-Finno-Ugric	-s	—

Every word from Proto-Indo-European lewh₃- →Every word from Proto-Germanic laugō →Every word from Old Norse laug →