c.1300, ceptre, from Old French sceptre (12c.), from Latin sceptrum "royal staff," from Greek skeptron "staff to lean on; royal scepter;" in transferred use, "royalty," from root of skeptein "to prop or stay, lean on." Apparently a cognate with Old English sceaft (see shaft (n.1)). The verb meaning "to furnish with a scepter" is from 1520s.
Designing and analysing circuits.
["SCEPTRE: A Computer Program for Circuit and Systems Analysis", J.C. Bowers et al, P-H 1971].
(Heb. shebet = Gr. skeptron), properly a staff or rod. As a symbol of authority, the use of the sceptre originated in the idea that the ruler was as a shepherd of his people (Gen. 49:10; Num. 24:17; Ps. 45:6; Isa. 14:5). There is no example on record of a sceptre having ever been actually handled by a Jewish king.