פָּזַז

From LSJ

Ὕπνος πέφυκε σωμάτων σωτηρία → Incolumitas est corporis nostri sopor → Der rechte Weg ist zur Gesunderhaltung Schlaf

Menander, Monostichoi, 520

English (Strong)

a primitive root (identical with פָּזַז); to solidify (as if by refining); also to spring (as if separating the limbs): leap, be made strong.
a primitive root; to refine (gold): best (gold).