Definition of custom:
of the same act
; way of acting common to many; ordinary
manner; habitual practice
; method of doing or living; Habitual
buying of goods; practice of frequenting, as a shop, manufactory, etc., for making purchases or giving orders; business support
"and teach customs which are not lawful. Acts xvi. 21."
made in a different way from usual, specially to fit one's needs
"my feet are as big as powerboats, so I need custom shoes."
"on a bridge he custometh to fight. Spenser