To open an account.
To enter a customer's name on your ledger
for the first time. (Latin, accomputare, to reckon with.)
To keep open account
is when merchants agree to honour each other's bills of exchange.
A current accountaccount current, a/c. A commercial term, meaning that the
customer is entered by name in the creditor's ledger for goods
purchased but not paid for at the time. The account runs on for a month
or more, according to agreement.
To cast accounts.
To give the results of the debits and credits entered, balancing
the two, and carrying over the surplus.
A sale for the account
in the Stock Exchange means: the sale of stock not for immediate
payment, but for the fortnightly settlement. Generally this is
speculative, and the broker or customer pays the difference of price
between the time of purchase and time of settlement.
We will give a good account of them
—i.e. we will give them a thorough good drubbing
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894