Noun
Pedobaptism.
Source: Webster's dictionaryHe rejected the Separatist movement's doctrine of infant baptism ( paedobaptism ). citation citation Shortly thereafter, Smyth left the group, and layman Thomas Helwys took over the leadership, leading the church back to England in 1611. Source: Internet
Servetus was a Spanish physician and Protestant theologian who boldly criticised the doctrine of the Trinity and paedobaptism (infant baptism). Source: Internet