Where does “выписаться” come from?

выписаться (Russian) comes from Russian вы́писать, from Russian писа́ть, from German pissen, from Middle Low German pissen, from Dutch pissen, from Middle Dutch pissen, from Old French pissier, from Vulgar Latin pissiare — I piss.

выписаться (Russian): to document one's exit from (somewhere), to check out of

Definitions

to document one's exit from (somewhere), to check out of

Ancestry of “выписаться”, step by step

Step	Language	Word	Meaning
1	Russian	вы́писать	to sign out
2	Russian	писа́ть	to write
3	German	pissen	to piss; to piss down
4	Middle Low German	pissen	—
5	Dutch	pissen	to piss
6	Middle Dutch	pissen	to piss
7	Old French	pissier	to piss; to excrete urine
8	Vulgar Latin	pissiare	present active infinitive of *pīssiō
9	Latin	pissio	I piss

Every word from Latin pissio →