Middle English: from Old Norse bakki, of Germanic origin; related to bench. The senses ‘set of things in rows’ and ‘tier of oars’ are from French banc, of the same ultimate origin.
late 15th century (originally denoting a money dealer's table): from French banque or Italian banca, from medieval Latin banca, bancus, of Germanic origin; related to bank1 and bench.
Bank meaning : the land alongside or sloping down to a river or lake. a long, high mass or mound of a particular substance. a set of similar things, especially electrical or electronic devices, grouped together in rows. the cushion of a pool table. heap (a substance) into a mass or mound. (with reference to an aircraft or vehicle) tilt or cause to tilt sideways in making a turn. (of a locomotive) provide additional power for (a train) in ascending an incline. (of an angler) succeed in landing (a fish). (in pool) play (a ball) so that it rebounds off a surface such as a cushion.