n.
Pronunciation: ' nap- ˌ sak
Function: noun
Etymology: Low German knappsack or Dutch knapzak, from Low German & Dutch knappen to make a snapping noise, eat + Low German sack or Dutch zak sack
Date: 1603
: a bag (as of canvas or nylon) strapped on the back and used for carrying supplies or personal belongings
– knap · sacked \ - ˌ sakt \ adjective