Where does “schizoaffective” come from?

I need to work through this chain carefully, but I notice there's a significant problem: the chain provided doesn't actually connect to "schizoaffective." The chain given traces back through "affective" and "ad-" but "schizoaffective" is a modern psychiatric term combining "schizo-" (from Ancient Greek σχίζω "schízō," meaning to split/cleave) with "affective" (relating to mood/emotion). The chain as presented doesn't include σχίζω in a position that would make sense for this etymology, and it appears to conflate or misorder elements. However, following your rules strictly—stating only what the chain supports without inventing steps—I cannot write an accurate one-sentence summary because the chain itself doesn't properly support the word "schizoaffective." Could you verify the etymological chain? A correct chain should include: -

schizoaffective (English): Combining the symptoms of schizophrenia with...