Where does “записываться” come from?

записываться (Russian) comes from Russian запи́сывать, from Russian записать, from Russian писа́ть, from German pissen, from Middle Low German pissen, from Dutch pissen, from Middle Dutch pissen, from Old French pissier — I piss.

записываться (Russian): to register for

Definitions

to register for

Ancestry of “записываться”, step by step

Step	Language	Word	Meaning
1	Russian	запи́сывать	to write down, to enter to set something down in writing
2	Russian	записать	to write down, to enter; to record; to enroll, to...
3	Russian	писа́ть	to write
4	German	pissen	to piss; to piss down
5	Middle Low German	pissen	—
6	Dutch	pissen	to piss
7	Middle Dutch	pissen	to piss
8	Old French	pissier	to piss; to excrete urine
9	Vulgar Latin	pissiare	present active infinitive of *pīssiō
10	Latin	pissio	I piss

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