From Ancient Greek ποῖος (poîos), from Proto-Indo-European *kʷis.
ποιος • (poios) m (feminine ποια, neuter ποιο) interrogative
singular | plural | ||||||
---|---|---|---|---|---|---|---|
masculine | feminine | neuter | masculine | feminine | neuter | ||
nominative | ποιος (poios) | ποια (poia) | ποιο (poio) | ποιοι (poioi) | ποιες (poies) | ποια (poia) | |
genitive | ποιου (poiou) ποιανού (poianoú) |
ποιας (poias) ποιανής (poianís) |
ποιου (poiou) ποιανού (poianoú) |
ποιων (poion) ποιανών (poianón) |
ποιων (poion) ποιανών (poianón) |
ποιων (poion) ποιανών (poianón) | |
accusative | ποιον (poion) | ποια (poia) ποιαν (poian) |
ποιο (poio) | ποιους (poious) ποιανούς (poianoús) |
ποιες (poies) | ποια (poia) | |
vocative | — | — | — | — | — | — |
The alternative forms are usually pronouns, used for people and not things.
ποιαν (poian) should be used before vowels and the consonants: κ, ξ, π, τ, ψ, γκ, ντ, μπ.