The Swedish term "gördel, sadelgjord, omkrets" matches the English term "girth"

other swedish words that include "gördel" : english :
gördel, omge, bälte girdle
other swedish words that include "sadelgjord" : english :
sadelgjord saddle-girth
sadelgjordsväv webbing
other swedish words that include "omkrets" : english :
omkrets circumference