-ium
/ɪəm/suffix
1Forming nouns adopted unchanged from Latin (such as alluvium) or based on Latin or Greek words (such as euphonium).
2 (also -um) Forming names of metallic elements: cadmium magnesium
3Denoting a region of the body: pericardium
4Denoting a biological structure: mycelium
Origin
Modern Latin in sense 2, sense 3, sense 4, via Latin from Greek -ion.
- good oil
- good old boy
- good (or bad or poor) show!
- good (or nice) thinking
- good (or the best of) luck
- Good Parliament
- Goodpasture
- good-paying
- good people
- good-plucked
- good-quality
- good question
- good riddance
- goods and chattels
- good-selling
- good sense
- good-sister
- good-size
- good-sized
- good soldier
- good-son
- goods train
- good taste
- good-tempered
- good-temperedly