centre: [14] The word centre came originally from the spike of a pair of compasses which is stuck into a surface while the other arm describes a circle round it. Greek kéntron meant ‘sharp point’, or more specifically ‘goad for oxen’ (it was a derivative of the verb kentein ‘prick’), and hence was applied to a compass spike; and it was not long before this spread metaphorically to ‘mid-point of a circle’. The word reached English either via Old French centre or directly from Latin centrum. The derived adjective central is 16th-century. => eccentric
