Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
supplicatory is an adjective meaning "humbly entreating". It carries one recorded sense.
humbly entreating
“a suppliant sinner seeking forgiveness”
Definitions, synonyms and semantic relations for supplicatory come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.