Extended Strong's Greek Lexicon (Abbott-Smith based)
luxury
Usage: στρῆνος, -ους, τό (cf. Lat. strenuus), [in LXX: 4Ki.19:28 (שַׁאֲנָן)* ;] insolent luxury, wantonness: Rev.18:3 (a late word, first found in a Comic poet, B.C. 300, see Kennedy, Sources, 41, cf. στρηνιάω).† (AS)