The Swedish term "sav, underminera, tunnel, löpgrav, saft, dumbom" matches the English term "sap"

other swedish words that include "underminera" : english :
undergräva, underminera undermine
other swedish words that include "tunnel" : english :
rör, slang, tub, tunnelbana tube
tunnel tunnel
underjordisk, tunnelbana underground
other swedish words that include "dumbom" : english :
dumbom, dumhuvud dunce
narr, tok, dumbom fool
dumbom gaby
dumbom, kräk goof
dumbom ninny
dumbom nitwit
dumbom zany