intransitive verb Date: 1942 to trade something in (as an automobile) for something less expensive or valuable of its kind, to stock or purchase lower-priced items ; economize
TRADE DOWN
Meaning of TRADE DOWN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012