Definition from Wiktionary, the free dictionary
ποιου • (poiou) (interrogative)
- Genitive masculine singular form of ποιος (poios) ("who, which").
- Genitive neuter singular form of ποιος (poios) ("who, which").
This word has an alternative form - ποιανού (poianoú) - which is used for people and not things.