κέντρον (kéntronken'-tronnounsting)
[Grk] κέντρον LN: 6.9, 8.45, 20.69, 24.86, 39.19 GK: G3034 Hebrew: מֶתֶג, קֹטֶב
Derivation: from κεντέω (to prick);
Strong's: a point ("centre"), i.e. a sting (figuratively, poison) or goad (figuratively, divine impulse)
KJV: --prick, sting.