balance: [13] The underlying etymological meaning of balance is of a weighing apparatus with ‘two pans’ for holding things. In Latin this was a lībra bilanx, literally ‘scales with two pans’ – bilanx being compounded from bi- ‘two’ and lanx ‘plate, pan’. Bilanx passed, in its stem from bilanc-, via Vulgar Latin *bilancia into Old French balance, the source of the English word. [balance etymology, balance origin, 英语词源]