Added 9 October 2026
psycho
/ˈsaɪ̯.kəʊ̯/ noun
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about psycho at Wordnik → Where our words come from →
Origin
Clipping of psychotic or psychopath + -o (“person with characteristic”). Compare sicko.
From Wiktionary, via Kaikki.org (CC BY-SA)