Arrenitehallucination
When an AI states something false in a smooth, confident way, such as inventing a quotation or a source that does not exist.
In AI, a hallucination is an answer that sounds right but is not grounded in anything real. It is not a lie, because the system has no intention. It is a by-product of producing likely-sounding language.
The practical habit is simple: when an answer names a fact, a date, a quotation or a source, look it up somewhere you trust before you rely on it.