The Swedish term "grundlig blöta, genomdränka" matches the English term "drench"

other swedish words that include "blöta" : english :
blöta upp, laka ur macerate
blöta upp soak
saltlake, blöta souse
other swedish words that include "genomdränka" : english :
genomdränka, genomsyra imbue
impregnera, genomdränka impregnate