noun
Refers to things that are left over or offered, especially food placed on a household altar (仏壇) as an offering, or more broadly, something that results from a process (yield) or is discarded (waste). The exact meaning depends on context.
仏壇の上がり物を下げて、みんなでいただきます。
We take down the food offerings from the Buddhist altar and eat them together.
この畑の上がり物は、今年は少なかった。
The yield from this field was small this year.
工事の上がり物をきちんと処理する。
We properly dispose of the waste from the construction work.
廃棄物 is a formal term for waste or discarded materials, while 上がり物 is a more colloquial and softer expression for leftover or waste items.
Compound of 上がり (agari, 'rising' or 'result', the continuative form of 上がる) and 物 (mono, 'thing'). The meaning 'food offering' comes from the idea of something that has been offered up (to the altar) and then taken down; 'yield' and 'waste' derive from the notion of something that results from a process.