Dulia: veneration given to icons, relics, saints, etc.
Hyper-dulia: special veneration given to Mary.
Latria: worship given to God.
(James White discusses Rome’s un-Biblical uses of “dulia” and “latria”)
After reading more about the official teachings of the Church in regard to Mary, this became one of the clearest points of doctrine for me as to why I believe Rome has gone astray. Many of the functions given to God the Son have increasingly been mimicked in Mary over the history of the Church. In 1854, the Church declared the dogma of the Immaculate Conception and that it is required to believe for salvation. It is now integral to the gospel. Then in 1950, the doctrine of the Bodily Assumption was declared as dogma. Many Catholics I’ve spoken with say these teachings were not “new”, nor became “official”, but were “re-confirmed”.