κεντρόω

A. furnish with a sting:—Pass., to be so furnished, Pl. R. 552d, 555d.

2. strike with a goad, Hdt. 3.16 (cf. κεντόω): metaph., spur on, κεκεντρωμένος εἰς λόγους Aristid. Or. 50(26).26.

II. Pass., Astron., occupy a cardinal point, Ptol. Tetr. 153, Man. 1.90.