supplication has definitions from the field of religion
1
[ noun ] a humble request for help from someone in authority

Synonyms

plea

Related terms

entreaty supplicate

2
[ noun ] (religion) a prayer asking God's help as part of a religious service

Synonyms

invocation

Related terms

prayer rogation service

3
[ noun ] (religion) the act of communicating with a deity (especially as a petition or in adoration or contrition or thanksgiving)

Synonyms

prayer

Examples

"the priest sank to his knees in prayer"

*