to beg humbly; esp to pray to God
to ask (somebody) humbly and earnestly for something
to ask humbly and earnestly for (something)
supplication /-ʹkaysh(ə)n/ noun
supplicatory /-kət(ə)ri/ adj
[Middle English supplicaten from Latin supplicatus, past part. of supplicare, from supplic-, supplex: see supple]