symbol: [15] Etymologically, a symbol is something ‘thrown together’. The word’s ultimate source is Greek sumbállein, a compound verb formed from the prefix sun- ‘together’ and bállein ‘throw’ (source of English ballistic, problem, etc). The notion of ‘throwing or putting things together’ led on to the notion of ‘contrast’, and so sumbállein came to be used for ‘compare’. From it was derived súmbolon, which denoted an ‘identifying token’ – because such tokens were ‘compared’ with a counterpart to make sure they were genuine – and hence an ‘outward sign’ of something. => ballistic, parable, parole, problem
