The Swedish term "knekt, skälm, kanalje" matches the English term "knave"

other swedish words that include "knekt" : english :
knekt i kort jack in cards
knekt, krigare, soldat soldier
other swedish words that include "skälm" : english :
skojare, skälm, skurk rogue
slyngel, lymmel, fuska, skälm, slarva med scamp
other swedish words that include "kanalje" : english :
skurk, kanalje blackguard