קָפַץ qâphats (H7092)

to draw together, i.e. close; by implication, to leap (by contracting the limbs); specifically, to die (from gathering up the feet)

1) to draw together, close, shut, shut up, stop up 1a) (Qal) to shut 1b) (Niphal) 1b1) to draw oneself together (of death) 1b2) to be shut up to death 1c) (Piel) springing, skipping (participle)

a primitive root;