I. ˈrəsk noun
( -s )
Etymology: modification of Spanish & Portuguese rosca coil, screw, twisted roll
1. : hard crisp bread originally used as ship's stores
2. : a sweet or plain twice-baked bread that is first prepared and baked and then sliced and baked a second time until it is dry and crisp
II. transitive verb
( -ed/-ing/-s )
: to toast or crisp (bread or cake) into rusk