Meanings
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1
adj
regulating or controlling expenditure or personal behavior
Sumptuary laws discouraging construction of large houses on small plots.
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2
adj
Relating to expenditure or expense, especially on luxury goods.
Among the trade goods mentioned are not only luxury items but also food produce, which contradicts the idea of exclusively sumptuary trade. Quite possibly these northern lords maintained sporadic trade with Guayaquil in pre-Hispanic times.
Thesaurus
Etymology
From Latin sūmptuārius (“of or relating to expenditure, sumptuary; person in charge of household expenses”) + English -ary (suffix meaning ‘of or pertaining to’ forming adjectives). Sūmptuārius is derived from sūmptus (“charge, cost, expense”) + -ārius (suffix forming adjectives); and sūmptus from sūmō (“to catch, seize, take; to acquire, get, obtain; to apply, employ, use; to consume, spend”) (from sub- (prefix meaning ‘below, beneath, under’) + emō (“to acquire, procure; to buy, purchase”) (from Proto-Indo-European *h₁em- (“to distribute; to take”))) + -tus (suffix forming action nouns from...