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Don't -ism words end in -"isma" rather than "-ismus"? -SeriousNiger

SeriousNiger please sign your disputatio entries with --~~~~ as is the norm.
In reply to your question: No, that is incorrect, ism corresponds to -ismus. See the sources listed on the page.--Rafaelgarcia 03:43, 31 Martii 2008 (UTC)
No, both -isma and -ismus exist. Schism, mechanism, prism are from -isma words. Solecism, syllogism, paganism are from -ismus words. Baptism apparently had both baptisma and baptismus. -ismus is the one to use when referring to a belief system or set of ideals, though. —Mucius Tever 10:38, 31 Martii 2008 (UTC)
If it derives from a Greek noun with the ending -ισμός or has (like "communism") been made up in analogy (mostly for doctrines), it will end in -ismus in Latin. Conversely, if the original Greek noun ends in -μα (the σ is part of the root), it will remain that way in Latin, too.--Ceylon 12:44, 31 Martii 2008 (UTC)
An example would then be schisma. --Alex1011 12:49, 31 Martii 2008 (UTC)