being vendible, being in great demand, being current, being vendible, in great demand, or selling well (goods, implying a difficulty of sale)

customary, usual, general

according to custom or practice, customarily

introduce, popularize

become a custom, be in vogue

become prevalent, come in vogue, be in fashion

to become customary, to become current

lingua franca, a mixed language which is a means of expression in different nations,

native customs

custom and usage, established practice, customs and traditions