IPA: //ˈbæptɪzməli//
KK: /ˈbæptɪzməli/
In a manner related to the Christian ceremony of baptism, which symbolizes purification and admission to the Christian community.
The child was baptismally welcomed into the church during the ceremony.
Baptismally → It is formed from "baptism" (from Greek "baptisma", meaning to immerse or dip) and "-ally" (meaning in a manner relating to). The word "baptismally" refers to something done in a manner relating to baptism.
Think of the act of 'immersing' ('baptisma') in water, which is what baptism signifies, and remember that 'baptismally' means in a manner related to that act.