American Dictionary of the English Language

BANK'ING, participle present tense Raising a mound or bank; inclosing with a bank. When we speak of restraining water, we usually call it banking; when we speak of defending the land, we call it imbanking.

BANK'ING, noun The business or employment of a banker; the business of establishing a common fund for lending money, discounting notes, issuing bills, receiving deposits, collecting the money on notes deposited, negotiating bills of exchange, etc.