Emily Dickinson Lexicon

custom (-s), n. [OFr.] (webplay: buying, common, due, habitual, limited, little, manner, way).

1. Instinct; natural pattern; regular way of doing things; repetitious action not requiring thought; act completed in an established manner; [fig.] migration.
2. Habit; usual practice; [word play] business; commerce; trade; enterprise; merchandise.