During my studies of heterocyclic compounds I learned that monocyclic compounds has prefix+ stem+ suffix. the prefix is coming from the heteromolecule name (e.g oxgen --> oxa- )
however the stem and suffix is ambiguous to me. I can link some of the stem (e.g et --> from tETra) but what about all other stems and suffixes. Where do they came from?
It will be very helpful if the source of terminology is documented here.