Where does “sittkissa” come from?

sittkissa (Swedish) comes from Swedish kissa, from Swedish pissa, from Middle Low German pissen, from Dutch pissen, from Middle Dutch pissen, from Old French pissier, from Vulgar Latin pissiare, from Latin pissio — I piss.

sittkissa (Swedish): to pee sitting down

Definitions

to pee sitting down

Ancestry of “sittkissa”, step by step

sittkissa traces back through two separate lines of ancestry.

via Swedish kissa

Step	Language	Word	Meaning
1	Swedish	kissa	to pee
2	Swedish	pissa	to pee
3	Middle Low German	pissen	—
4	Dutch	pissen	to piss
5	Middle Dutch	pissen	to piss
6	Old French	pissier	to piss; to excrete urine
7	Vulgar Latin	pissiare	present active infinitive of *pīssiō
8	Latin	pissio	I piss

via Swedish sitta

Step	Language	Word	Meaning
1	Swedish	sitta	to sit
2	Old Swedish	sitia	to sit
3	Old Norse	sitja	to sit
4	Proto-Germanic	sitjaną	to sit
5	Proto-Indo-European	sḗd-	to sit

Every word from Latin pissio →Every word from Vulgar Latin pissiare →Every word from Old French pissier →