Where does “засучивать” come from?

засучивать (Russian) comes from Russian засучи́ть, from Russian сучи́ть, from Proto-Slavic *sučiti.

засучивать (Russian): to roll up, to tuck up

Definitions

to roll up, to tuck up

Ancestry of “засучивать”, step by step

Step	Language	Word	Meaning
1	Russian	засучи́ть	—
2	Russian	сучи́ть	—
3	Proto-Slavic	*sučiti	—

Every word from Proto-Slavic *sučiti →

засучивать — Etymology, Origin & Word History | Etymology Explorer