Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
sumptuary is an adjective meaning "regulating or controlling expenditure or personal behavior". It carries one recorded sense.
regulating or controlling expenditure or personal behavior
“sumptuary laws discouraging construction of large houses on small plots”
“sumptuary laws forbidding gambling”
Definitions, synonyms and semantic relations for sumptuary come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.