the.com/stockpile

means A large stored supply of something kept in reserve for future need.

from A straightforward compound from 'stock' (goods or supply, itself rooted in the sense of a tree trunk or store of wealth) and 'pile' (a heap). It emerged as military and industrial jargon, naming the deliberate accumulation of materials — ammunition, fuel, grain — against future shortage or war, before sliding into everyday use for anything from canned beans to toilet paper.