SUMPTUOUSLY
sumptuously, opulently
(adverb) in a sumptuous and opulent manner; “this government building is sumptuously appointed”
Source: WordNet® 3.1
Etymology
Adverb
sumptuously (comparative more sumptuously, superlative most sumptuously)
In a sumptuous manner.
Source: Wiktionary
SUMPTUOUS
Sump"tu*ous, a. Etym: [L. sumptuosus, fr. sumptus expanse, cost: cf.
F. somptueux. See Sumptuary.]
Definition: Involving large outlay or expense; costly; expensive; hence,
luxurious; splendid; magnificient; as, a sumptuous house or table;
sumptuous apparel.
We are too magnificient and sumptuous in our tables and attendance.
Atterbury.
She spoke, and turned her sumptuous head, with eyes Of shining
expectation fixed on mine. Tennyson.
– Sump"tu*ous*ly, adv.
– Sump"tu*ous*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition