suppliant
/ˈsʌplɪənt/; /ˈsʌplɪənt/; /sʌˈplɪənt/Definitions
1. noun
a person who makes a humble or urgent request, especially to a superior or a deity
“The suppliant knelt down and begged for forgiveness.”
2. verb
to make a humble or urgent request, especially to a superior or a deity
“She suppliantly asked for a second chance to prove herself.”